Roger Federer beats Dominic Thiem in straight sets at the O2
MIKE DICKSON AT THE O2: Back to the wall, under fire from a fellow professional, Roger Federer's inner competitor showed itself on Tuesday night as he lived to fight another evening.
MIKE DICKSON AT THE O2: Back to the wall, under fire from a fellow professional, Roger Federer's inner competitor showed itself on Tuesday night as he lived to fight another evening.