Becker is pictured with cars worth £145,000 just days after being declared bankrupt as friends now say his eight-year marriage is on the rocks

Friends of former tennis star Boris Becker have reportedly suggested that his eight-year marriage to model Lilly Becker is on the rocks. Yesterday, the three-time Wimbledon champion shrugged off claims that they were splitting as they were spotted leaving their London house in a Porsche to celebrate his wife's 41st birthday. He tweeted a photo of Mrs Becker wishing his 'love' a happy birthday - though he hinted at possible turbulence with the caption: 'Through thick and thin ...' Last week Becker, who amassed tens of millions after first winning Wimbledon at 17, was declared bankrupt over a £3.34million debt owed to a private bank.