The 35-year-old's first match back in action last week at the Stuttgart Open was a flop when he suffered a shock loss to German veteran Tommy Haas, ranked 302 at the time, despite leading for a set and a half.
Wimbledon has witnessed some seismic shocks down the years but few could top twice champion Rafa Nadal's elimination at the hands of Steve Darcis, a Belgian ranked 135th in the world, in the first round on Monday. Here are six other matches that shook up Wimbledon.
In-form playmaker Isco struck twice and Cristiano Ronaldo netted his first goal of the campaign to give Luka Modric-inspired Real Madrid a 3-1 home win over Athletic Bilbao in La Liga on Sunday.
Lukas Podolski and Olivier Giroud gave food for thought to Arsenal fans craving a new striker by scoring in a 3-1 Premier League win at Fulham on Saturday while Liverpool made it two victories from two games at Aston Villa.
Real Madrid romped to a 4-1 win at tiny Eibar on Saturday, provisionally returning to the top of La Liga, despite the absence of Gareth Bale and Cristiano Ronaldo for Zinedine Zidane's side.
With the Catalans shorn of three of their top forwards, all eyes will be on Griezmann in his first appearance at the Camp Nou since his 120-million-euro ($133 million) move from Atletico Madrid, and not least because Barca need a win to kickstart their season.
IMAGES from Europa League matches played on Thursday.
A look at the last 16 team as Euro 2020 enters the knockout phase.
Juventus coach Massimiliano Allegri believes Cristiano Ronaldo deserves to win the Ballon D'Or, following media reports that the forward has not been short-listed for the award's final three for the first time since 2010.
Rohan Bopanna and Pablo Cuevas shocked top seeds Marcelo Melo and Lukas Kubot to storm into the semi-finals of the Erste Bank Open
Here's looking at the newest batch of hot guys who are quickly consolidating their positions as heartthrobs.
Rediff.com presents the early surprises at the year's first Grand Slam.
German national football team manager Joachim Low has admitted his side were 'scared' ahead of Friday night's friendly with France due to an earlier bomb threat in the capital.
Images from Europa and Champions League matches played on Wednesday.
Images from the second day's play of the 2016 French Open at the Roland Garros
Almost a year after suffering one of the worst defeats of his career to Czech hitman Lukas Rosol, Rafael Nadal ventured back into the All England Club this week after claiming another French Open triumph, just as he did 12 months ago.
Images from the UEFA Champions League matches played on Tuesday.
Watford and Crystal Palace continued to inch towards Premier League safety after a scrappy goalless draw at Vicarage Road on Saturday that means the home side have taken just two points from a possible 21.
Images from Day 2 of the French Open in Paris, on Monday.
Wigan Athletic became the first team to be relegated from England's top flight in the same season as winning the FA Cup after they lost 4-1 at Arsenal, with Lukas Podolski scoring twice, in the Premier League on Tuesday.
Germany coach Joachim Loew has been forced to make changes to his team for Thursday's semi-final against hosts France at Euro 2016 because of injuries and a suspension, including replacing key goalscorer Mario Gomez.
Indian Challenge ended at the Madrid Open with the straight set defeat of Mahesh Bhupathi and Rohan Bopanna at the hands of unseeded team of Jeremy Chardy and Lukas Kubot in Madrid.
Real Madrid equalled a Spanish record of 39 games unbeaten in all competitions by crushing struggling Granada 5-0 on Saturday to go six points clear at the top of La Liga.
Arsenal have left six first-team regulars in London ahead of their final Champions League group stage match against Olympiakos Piraeus in a bid to avoid fatigue following the home defeat to Swansea City.
Summary of sports events and persons who made news on Saturday
Holders Czech Republic showed how tenaciously they will fight to retain the Davis Cup on Saturday, while five-times champions Spain avoided being knocked out in the first round for the first time since 2006 by winning their doubles rubber against Canada.
Novak Djokovic quickly got back in the groove after his Australian Open triumph with a crushing defeat of Olivier Rochus as Serbia surged into a 2-0 lead in their Davis Cup, first round tie in Belgium on Friday.
Arsenal scored three goals in the last five minutes to beat NorwichCity 3-1 and move third in the Premier League on Saturday while Everton won 2-0 at home to Queens Park Rangers to maintain their faint top-four aspirations.
Cristiano Ronaldo scored on his return from injury as Real Madrid thrashed Osasuna 5-2 at the Santiago Bernabeu on Saturday to equal the club's 1960-61 record of 15 successive La Liga wins.
Oliver Giroud netted a double, Lukas Podolski scored and set up three more as rampant Arsenal closed the gap on the Champions League positions by thumping West Ham United 5-1 in their rearranged Premier League match on Wednesday.
Lukas Rosol beat Evgeny Korolev 7-6, 67, 7-6, 6-2 to give the Czech Republic an unassailable 3-1 lead over Kazakhstan and propel the defending champions into the Davis Cup semi-finals on Sunday.
The Indian cueist, who maintained a clean slate in the group stage with an all-win record, trounced Germany's Lukas Kleckers 6-0.
Tottenham Hotspur have dropped their interest in signing Porto's Joao Moutinho because the Portugal midfielder is too expensive, the Premier League club's new manager Andre Villas-Boas said.
A stoppage-time goal by Ishan Pandita helped FC Goa pull off a thrilling 3-3 draw against Mumbai City FC
Croatia needed a touch of Luka Modric magic to beat Turkey 1-0 in their Euro 2016 Group D opener on Sunday, gaining a measure of revenge after their bitter quarter-final elimination by the same opponents at Euro 2008.
Rohan Bopanna and Sania Mirza advanced to the second rounds of their respective events at prestigious ATP/WTA Sony Open after hard fought wins with their partners, in Maimi.
Substitute Lukas Podolski grabbed an 81st-minute equaliser to rescue a 2-2 draw for 2014 World Cup winners Germany in an entertaining friendly.
Playing alongside Australian partner Matthew Ebden, the eight-time doubles Grand Slam champion Leander Paes showed his class during a clinical victory over defending champion and second seed Sharan, who was playing alongside New Zealand's Artem Sitak.
Rohan Bopanna and Rajeev Ram's campaign at the ATP Indian Wells Masters ended in the first round itself after a straight sets defeat against Lukas Kubot of Poland and Janko Tipsarevic of Serbia.