Serena Williams was favored to win the 2017 Wimbledon and Stubbs is certain that she would have done it if she didn't get pregnant a couple of months earlier.
Williams was absolutely on fire in 2017 when she got pregnant. The American legend just won her 23rd grand slam trophy in Melbourne by beating sister Venus Williams and she was favored to win at least one. That one would have tied her with Margaret Court, something that she never achieved as she retired at 23.
To stubbs, that doesn't matter as her achievment is better than that of Court:
"She probably would have passed Margaret’s 24 Grand Slams. It doesn't count to me. 22 was always the mark, it was always the mark because it was professional tennis. And Margaret Court won 10 Australian Opens and basically eight of them when pretty much there was never a full field."
Stubbs is certain though that Williams would have won Wimbledon if she didn't get pregnant:
"Serena did this little thing called get pregnant. She was so dominant at that point. There's no question that if she hadn't got pregnant, she would have won Wimbledon that year, for sure. She was almost unbeatable at Wimbledon when she was playing well, you know".
She isn't certain about the French Open though:
"Would she have won the French? I don't know. It was the toughest one for her to win that year, but no doubt in my mind she would have probably won Wimbledon. US Open was always difficult because it was emotionally such a tough event for her to play for so many reasons, but would she have won there? I would certainly have said her over the field at the US Open that year."