and they'll face ukraine after artem dovbyk scored the wonderfully headed winner in extra time against grand slam to equal margaret court's record of 2a titles twisted and fell to the ground when leading 3—1 in the first set, and, after receiving treatment tried to play on, but to no avail, much to her obvious anguish. eight—time champion roger federer is through to the second round, but only after his opponent withdrew due to injury. the 39—year—old sixth seed was two sets and a break down when france's adrian mannarino, who was celebrating his 33rd birthday today, slipped and injured his knee. the world number 41 battled on and lost the fourth set, then retired after one point in the decider. afterwards, federer explained one of the intricacies of the wimbledon courts and why injuries happen. for a lot of players, it's super key to get through those first two rounds, because the grass is more slippery, it is more soft, and then, as the tournament progresses, it usually gets harder and easier to move on. but this is obviously terrible that it's back—to—back matches — and serena, as we