Novak Djokovic says an injury sustained during his win over Horacio Zeballos seemed like a "twinge" and "nothing major.
Rafael Nadal and Carlos Bernardes have had disagreements before, but the world number one took no issue with two time violations in SW19.
Marin Cilic was unable to find his rhythm as he bowed out of Wimbledon in the second round at the hands of outsider Guido Pella.
World number one Simona Halep had a brief wobble against Zheng Saisai, but eventually came through in routine fashion.
Novak Djokovic required treatment to his left leg, but was able to wrap up a commanding second-round win over Horacio Zeballos.
World number one Rafael Nadal took only three sets to see off Mikhail Kukushkin at Wimbledon, but he was far from comfortable.
Marin Cilic became the most high-profile casualty in the men's draw, squandering a two-set lead to bow out at the hands of Guido Pella.
Marin Cilic was made to wait by the weather but Roger Federer wasted little time in recording victory on Wednesday.
A day on from Petra Kvitova's surprise Wimbledon departure, Caroline Wozniacki joined the pre-tournament favourite in making an early exit.
A 23-time grand slam champion, Serena Williams is still not satiated and is striving for more at Wimbledon.