Serena Williams was already ousted out of the ladies singles tournament at Wimbledon and today was forced to withdraw from doubles action along with sister, Venus.

During warmups, Williams was visibly not herself and was extremely disoriented.

Upon playing the first 3 games, Williams struggled to bounce the ball off the grass and her serve could not even reach the net.

Something was obviously wrong and the Williams duo was forced to withdraw from their match which was called 3-0 to opponents Kristina Barrois and Stefanie Voegele.

WATCH the video below, it is disturbing to say the least:

It is unknown as to what ailment Serena Williams was suffering from, but we have never seen something like this out of one of the best female tennis players of all time.

Williams also released this statement shortly after the forfeiture:

“I'm heartbroken ... I thought I could rally this morning, I wanted to compete, but this bug just got the best of me."

Williams has won 5 singles Wimbledon majors, her last one coming in 2012.