World No. 5 Jessica Pegula's French Open campaign came to an abrupt end in the first round as she fell to [opponent] in a shocking upset at Roland Garros. The result sent shockwaves through the tennis world, with analysts questioning her performance against a lower-ranked opponent. Pegula, who had reached the quarterfinals at last year's tournament, struggled with uncharacteristic errors in key moments. The loss highlights the unpredictable nature of Grand Slam tennis and sets the stage for a potential resurgence in the latter part of the tournament.