Roger Federer continued his smooth progress through the US Open draw with a straight-sets win over 13th seed Jurgen Melzer in round four.
The five-time champion was in good form as he eased to a 6-3 7-6 (7-4) 6-3 victory in the night session.
Federer had some luck in the second set tie-break with two net-cords and had to recover from a break down in the third, but was always in control of the match.
The Swiss will play fifth seed Robin Soderling in the quarter-finals.
Soderling had to recover from losing the first set before finally seeing off Spain's 21st seed Albert Montanes 4-6 6-3 6-2 6-3 on the Louis Armstrong Stadium.
Tonight was his first real test however Melzer was a tough opponent. Good preparation for Soderling. Already biting my nails in anticipation of that one!.
Hoping Fed gets some sweet revenge.
It's only gonna get tougher from here on in, but Fed is looking more then up to the challenge.
Rooting for Kimmy against Sam Stosur tomorrow, Kim's gonna have her work cut out for her.