French tennis player Gael Monfils remains sidelined as he continues to recover from a knee injury, reveals his agent Nicolas Lamperin.
Monfils was forced to retire his US Open third-round match to rising David Goffin.
The Frenchman was set to represent France in this week's Davis Cup World Group semi-finals tie against Serbia.
Monfils has had an injury-plagued season so far.
Monfils, who had a breakthrough campaign in 2016, hasn't won a title this season and has dropped to number 36 in the world.
It remains to be seen whether the Frenchman can recover in time and leave his mark during the upcoming indoors season.
''Unfortunately, Gael was forced to withdraw from the Davis Cup semi-final a few days before the tie against Serbia following his knee injury contracted over the summer which prevented him from performing at his best at the US Open. He remains nevertheless their biggest fan and wishes them all the best for the tie,'' Nicolas Lamperin said, per Monfils' Facebook page.
''He now needs to rest and get treatment for some time before he can get back to practice and then tournaments when ready. We have used this time off to start working on his schedule for next season.''
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