Gauff and Pegula join a record-breaking exodus of top seeds during the first round at Wimbledon. With both Americans out of the draw, it's the first time in Open Era history that two of the top three women's seeds exit in the first round of a major.

Americans Coco Gauff and Jessica Pegula.

French Open champion Coco Gauff tumbled out of Wimbledon in the first round on Tuesday, the American's serve deserting her as she was overpowered 7-6(3) 6-1 by fired-up Ukrainian Dayana Yastremska.

Barbora Krejcikova rallies from a set down to beat Alexandra Eala 3-6, 6-2, 6-1 and advance to the next round.

But a day after Carlos Alcaraz required four-and-a-half hours and five sets to see off Italian veteran Fabio Fognini, the “potential upset” alarm bells rang once more as women’s defending champion Barbora Krejcikova found herself wilting in the southwest London heat against an inspired Alexandra Eala.