US Open 2017 - Coco Vandeweghe vs Madison Keys Preview
The second women's singles semi-final at the US Open is scheduled for 1:30am UK time tonight, with Coco Vandeweghe and Madison Keys expected to generate an extremely serve-orientated match-up.

Both players are strong servers, evidenced by service points won percentages just shy of the 65% mark - well in excess of the 56% WTA hard court mean this year - whilst Vandeweghe particularly has deficiencies on return.
With break lead loss percentages low, and break deficit recovery percentages far from elite level, it’s reasonable to assume that this will be a very tight match with few breaks and lead changes in each set.
Keys benefits from slightly better stats overall, has a better win-loss record this year and has won both their previous meetings, both of which happen to be on hard courts in 2017.