After a weekend without any Premier League football, fans will be treated to an absolute corker of a Champions League schedule over the next couple of days.
Liverpool will be looking to redeem themselves after a horror show against Napoli as they host Ajax, while Barcelona will visit Bayern Munich after conceding 14 goals in their last three meetings with the Germans.
Barcelona will be hoping they can improve on previous results against the Bundesliga side and will certainly have improved odds of victory since luring Robert Lewandowski from the Alianz Arena in the summer transfer window.
Today’s meeting will see the striker come up against his old side for the first time after previously spending eight years with the German giants, where he won a mountain of silverware.
Lewandowski isn’t the only player that will be facing their old club this week, with Erling Haaland also set to come up against Borussia Dortmund tomorrow night.
The Norwegian joined Man City in the summer after scoring 86 goals across three seasons for Dortmund.
After a brilliant start to the Premier League campaign, Haaland too will be confident of netting against his former side.
Ahead of this week’s fixtures, we take a look at four footballers who have previously scored against their old clubs in the Champions League...
Cristiano Ronaldo (vs Man Utd)
When Manchester United drew Real Madrid in the Champions League Round of 16 nine years ago, the name on everyone’s lips was Cristiano Ronaldo.
With Los Blancos’ last meeting with the Red Devils coming in 2003, Ronaldo hadn’t faced his old club since his departure four years previous.
The first leg saw the Portuguese forward cancel out Danny Welbeck’s opener when he scored on the half hour mark in Madrid, before he bagged the winner in the second leg at Old Trafford to knock United out of the competition.
Despite taking his team to the quarter-finals of the competition, Ronaldo refused to celebrate and instead put his hands up in response to his goal.
Alvaro Morata (vs Real Madrid)
Among the other elite clubs Alvaro Morata has played for, the striker began his career with Real Madrid after joining the academy in 2008.
The Spaniard spent four years with the senior side before signing for Juventus for €20 million in 2014.
Inevitably, Morata then came up against the Spanish giants in the Champions League semi-finals.
The forward wasted no time scoring against his old side, bagging the opener in less than ten minutes before Juve went onto win the match 2-1.
The Italians then needed to avoid defeat in the second leg to progress to the final and it was Morata that netted a second half equaliser to knock Real Madrid out of the tournament.
The forward opted against celebrating either of his goals against Los Blancos.
David Luiz (vs Chelsea)
After spending three years with Chelsea early in his career, David Luiz joined Paris Saint-Germain for a world-record fee for a defender of £50m.
The Brazilian didn’t have to wait long for a return to Stamford Bridge however, with PSG facing the Blues in the Champions League Round of 16 the following season.
Luiz started for PSG in their home leg tie against Chelsea, but it was his trip to England that left his former fans frustrated as he celebrated wildly after scoring a late equaliser.
The centre-back did go on to apologise to his former club, claiming it was a result of sudden emotion rather than any malice towards Chelsea.
He was clearly soon forgiven as he then returned to the Premier League side in 2016.
Zlatan Ibrahimovic (vs Inter Milan, Juventus, Barcelona & Malmo)
Zlatan Ibrahimovic has played for nine different clubs during his 23-year professional career, so it comes as no surprise that he has scored against a number of his former clubs.
The Swede has scored an impressive four goals in eight appearances against Inter Milan, lining up for both Barcelona and fierce rivals AC Milan.
Ibrahimovic has also scored against Juventus once, boyhood club Malmo once, and Barcelona three times.