Serena Williams Instagram & Twitter: Boyfriend Depression? China Open 2014 Star Posts New Picture

Serena Williams posted a new photo on Instagram and Twitter of a bottle of Château Lafaurie-Peyraguey wine with a caption reading "only you were missing."

The message left many of her fans wondering if it was about her coach and rumored boyfriend Patrick Moruatoglou.

She also uploaded a photo on Instagram and Twitter of herself having dinner by herself with a caption "dinner for one."

Serena Williams was recently spotted on a romantic date with him, the New York Post's Page Six reports.

"They seemed very intimate and they didn't stop chatting all night," an onlooker told the newspaper.

"They headed back to their hotel after about an hour and a half."