Cesc Fabregas and Pedro will be lining up against their former club when we face Barcelona on Tuesday, but they aren't the only ones to have worn both shirts...
Although this is the first fixture between the two sides in six years, since our epic Champions League semi-final triumph, Chelsea versus Barcelona is one of the iconic ties in the competition, with our 12 meetings producing many a magic moment.
The rivalry between us hasn't prevented these men representing both clubs with distinction – and with plenty of silverware lifted along the way...
The battering ram centre-forward could hit a volley like few others. He grew up supporting west London’s finest and subsequently played his part in bringing the glory days back to Stamford Bridge; indeed, his partnership with Gianfranco Zola was the catalyst to our run to the FA Cup in 1997. A decade earlier he had joined Barcelona at the same time as Gary Lineker, playing under a man who had his own links with Chelsea...
Terry Venables and Allan Harris
Venner was the on-field tactician of Tommy Docherty’s Diamonds in the mid-Sixties, orchestrating play with his rich array of passing and his in-depth tactical knowledge; Harris, the older brother of Chopper, and a fine defender in his own right, too. Together, they were the management team who brought the glory days back to Barcelona, guiding them to the La Liga title in 1985 after an 11-year wait. The following season almost ended with an even bigger triumph, as Barca reached the European Cup final. However, they lost on penalties to Steaua Bucharest without converting any of their efforts from the spot.
Having spent over a decade at Barcelona, his home-town team with whom he won the European Cup in 1992, Ferrer joined Chelsea in the summer of 1998. Despite standing at just 5ft 7in, 'Chapi' was a combative right-back who played a key role in helping the Blues qualify for our maiden Champions League campaign, a competition in which he netted his only goal for the club, against Hertha Berlin.
The Brazilian-born midfielder followed up his Champions League win with Porto by lifting the trophy at Barcelona, and he was involved in some epic tussles with the Blues during his time at the Camp Nou. He had an eye for the spectacular during his two-year stint in west London, which culminated with the Blues winning the Double, and his wonder goal on debut against Portsmouth will live long in the memory.
Another two-time Champions League winner, this time with Barca and Inter, Eto'o scored goals for both at Stamford Bridge which helped eliminate the Blues on their way to lifting the trophy. As such, he was a surprise signing for Chelsea in 2013, and big-game goals against Liverpool, Spurs and Arsenal sandwiched his best display in a Chelsea shirt – a hat-trick scoring turn against Manchester United.
Iceland’s most famous footballer formed one half of a devastating strike pairing with Jimmy Floyd Hasselbaink, with his calm and composed brand of forward play perfectly complementing his devastating partner. Gudjohnsen’s intelligence and deft touch allowed him to drop deeper and he went to play a huge role in back-to-back Premier League-winning squads, as well scoring in our epic 4-2 win over Barcelona in 2005. He was less influential at the Camp Nou, but he did net on his return to the Bridge and he also won the Champions League with Barca.
The Dutchman featured for Barcelona in the first Champions League tie between the clubs, and a year later he had signed for the Blues. Having netted on his debut against Newcastle, the left-winger struggled to show the sort of form that had so impressed viewers of Euro 2000. He did end that first campaign with an FA Cup runners-up medal, though, and began his second season with renewed vigour, scoring a peach of a goal against Manchester United. He also had a brief spell as a coach here under Rafa Benitez, winning the Europa League in 2013.
Who would have though a right-back would be lauded by supporters of both clubs thanks to his goalscoring ability? Belletti scored a goal which was popular with both sets of fans, as he netted the winner in Barcelona's Champions League final win over Arsenal in 2006. At Chelsea, he became a cult hero with two stunning strikes in his debut campaign, the second of which, against Tottenham, earned him the club's Goal of the Season award.