Young tennis star Eugenie Bouchard had the world by the tail in 2014, reaching the Wimbledon final as well as the semifinals at the Australian and French Open.
Bouchard tried to come back at the China Open this week, but was forced to retire after she became dizzy in her opening match against Andrea Petkovic.
“I just asked her what happened, and she told me that she felt very dizzy,” Petkovic said in a press conference after the match. “Then I asked if it was the same, if it still was the concussion. She said, ‘Yeah, it tends to come back when she gets physically very active.’”