Switching Sides: 10 players to play for both LFC and Spurs
The transfer route between Anfield and White Hart Lane is a fairly well-trodden one, with numerous players having featured for both Liverpool and Tottenham Hotspur down the years.
Some are adored by both clubs, such as the great Ray Clemence, while the careers of others are not so easy to recall.
So, ahead of Sunday's Premier League meeting in London, we've picked out 10 players to play for each team...
1. Ray Clemence
Liverpool: 665 games
Tottenham: 330 games
A legend at both Anfield and White Hart Lane, Ray Clemence is regarded as the finest goalkeeper Liverpool have ever had.
Clemence brought a calming presence to the defence and made some stunning saves at big moments for the Reds.
Signed by Bill Shankly from Scunthorpe United in 1967, the future England international would go on to play 665 times for the club as he collected 12 major trophies, including five league titles.
In his final game for Liverpool, before joining Spurs in 1981, he kept a clean sheet against Real Madrid as Alan Kennedy's late strike at the Parc des Princes secured the last of Ray's three European Cups with the Reds.
He won the UEFA Cup and FA Cup at White Hart Lane.
2. Neil Ruddock
Tottenham: 50 games, 4 goals
Liverpool: 152 games, 12 goals
Graeme Souness signed Neil Ruddock from Tottenham in 1993 in order to add a bit of steel to the Reds' backline.
An uncompromising centre-back, 'Razor' had an incredible will to win, could hit some fantastic passes upfield and was great in the air.
He famously riled Manchester United's Eric Cantona by repeatedly turning down the Frenchman's collar and further endeared himself to Kopites when he nearly knocked himself out scoring a courageous late header to earn a 3-3 draw against the Red Devils in 1994.
Ruddock actually made his senior debut against Liverpool, for Spurs in 1987, but it didn't go too well as it ended with a broken leg.
He won the League Cup with the Reds in 1995 and left the club as Gerrard Houllier arrived in 1998.
3. Christian Ziege
Liverpool: 32 games, 2 goals
Tottenham: 48 games, 8 goals
A Scudetto winner at AC Milan in 1999, Germany international Christian Ziege was regarded as one of the best left-backs in Europe when he joined Gerard Houllier's Liverpool, via Middlesbrough, in 2000.
He never really hit top form at Anfield, but was part of the squad that clinched the 2001 cup treble in his one and only season with the Reds.
Ziege was the fourth German to join the Reds - of seven to date - and still has the highest LFC win ratio of any of his compatriots, at 65.63 per cent.
He moved to Tottenham in 2000 and later helped an unfancied Germany team reach the final of World Cup 2002.
4. Jamie Redknapp
Liverpool: 308 games, 41 goals
Tottenham: 49 games, 4 goals
A superbly talented midfielder and brilliant passer of the ball, former Liverpool skipper Jamie Redknapp was a hugely popular figure at Anfield.
Snapped up as a fresh-faced 17-year-old by Liverpool boss Kenny Dalglish in January 1991, he would eventually make his Reds debut 10 months later under new manager Graeme Souness.
He helped LFC win the League Cup in 1995 and the England international could have won more during his 12 years at Anfield were it not for injuries.
Famed for his long-range shooting, 50 per cent of Redknapp's 30 league strikes for the Reds came from outside the box.
Redknapp left Liverpool to join Glenn Hoddle's Tottenham in 2002 and was made club captain by his former England boss.
5. Danny Murphy
Liverpool: 249 games, 44 goals
Tottenham: 29 games, 1 goal
Danny Murphy was signed by Roy Evans from Crewe Alexandra and went on to become a vital player as Liverpool won the cup treble in 2000-01.
And who can forget Super Dan's three Old Trafford winning goals for the Reds?
His free-kick in front of the Stretford End in December 2000 gave Liverpool victory at Manchester United for the first time in 10 years.
Deemed surplus to requirements by manager Rafael Benitez, Murphy moved to Charlton Athletic in 2004 and then onto Spurs in a last-gasp deal at the end of the 2006 January transfer window.
6. Graeme Souness
Tottenham: 1 game, 0 goals
Liverpool: 359 games, 55 goals
Graeme Souness only made one appearance for Spurs, in a UEFA Cup tie in 1971, and moved on to Middlesbrough in search of regular first-team football.
Tottenham's loss was undoubtedly Liverpool's gain as the Scot went on to captain the club to some glorious victories and become one of the all-time greats.
He actually spent a season playing in the North American Soccer League for the Canadian side Montreal Olympique and in the Australian National Soccer League with West Adelaide before being snapped up by Reds boss Bob Paisley.
Once at Liverpool, his first strike was a goal-of-the-season effort against Manchester United and things just got even better from there on.
A fearsome midfielder, who also possessed a subtle touch, he helped bring 15 major trophies to Anfield in his six years at the club, and he remains one of just four Reds captains to lift the European Cup.
7. Paul Walsh
Liverpool: 112 games, 37 goals
Tottenham: 128 games, 19 goals
Signed by Joe Fagan from Luton Town, striker Paul Walsh proved to be a popular figure at Anfield and played a key role during the 1985-86 double season when he partnered Ian Rush.
The tricky striker enjoyed an amazing run of 18 goals in 25 matches before injuries hampered his time with the Reds. But Rush still ranks Walsh in his top five LFC strike partners of all time.
"I liked playing with Walshy," says Rush. "Walshy was similar to Kenny Dalglish, but a bit more of an individual player. You could liken him to Luis Suarez - Walshy was very tricky and he learned to play as a team-player."
Walsh clocked up 112 games for the Reds before leaving to join Terry Venables' Tottenham, where he won the FA Cup in 1991.
8. Ronny Rosenthal
Liverpool: 97 games, 22 goals
Tottenham: 100 games, 11 goals
Signed by Kenny Dalglish, Ronny Rosenthal had scored seven goals on loan as Liverpool won their last league title in 1990.
A cult hero among fans, 'Rocket Ronny' netted 22 times in all, including a perfect hat-trick on his full debut and an injury-time winner in the Merseyside derby against Everton at Anfield in 1993.
Of course, there was also that classic miss against Aston Villa - when he beat the goalkeeper but struck the crossbar of the open goal - in 1992.
He joined Tottenham two years later and fired in a famous FA Cup hat-trick against Southampton, with a certain Bruce Grobbelaar in goal for the Saints.
9. Robbie Keane
Tottenham: 291 games, 117 goals
Liverpool: 28 games, 7 goals
Striker Robbie Keane joined Liverpool from Tottenham Hotspur in 2008 and although it didn't quite work out how he would have liked it at Anfield, the boyhood Red did score seven goals in 28 games.
The pick of his strikes was probably his thundering half-volley against old north London rivals Arsenal in an unusual silver-grey shirt and red shorts combination strip.
However, he struggled to replicate his best form alongside Fernando Torres and returned to Spurs six months after joining the Reds.
The Republic of Ireland's all-time leading goalscorer was soon back among the goals and won the League Cup with Juande Ramos' Spurs in 2008.
10. Peter Crouch
Liverpool: 134 games, 42 goals
Tottenham: 93 games, 24 goals
Peter Crouch proved to be a popular figure at Anfield after Rafael Benitez signed him from Southampton in 2006.
Although he took his time to notch his first Liverpool goal, the 6' 7" striker famously scored a perfect hat-trick - left foot, right foot and header - as the Reds beat Arsenal 4-1 in 2007.
His stunning overhead kick in a 3-2 Champions League win over Galatasaray was voted into UEFA's top 10 all-time goals in European competitions.
After leaving the Reds in 2008, he returned to Spurs via Portsmouth, where he had come through the youth ranks, and later scored the winner against AC Milan in a Champions League tie at the San Siro.
Still playing at 36 years old, now at Stoke, Crouch recently earned a place in the Guinness Book of Records for scoring the most headed goals in Premier League history - six of his record-breaking 51 headed goals came during his time at Anfield.