Serena Williams has ‘a lot of question marks’ at US Open

Serena Williams used to turn it on most when the pressure was at its peak — deep in Grand Slam tournaments. That hasn’t been the case of late for Williams, stuck on 23 Grand Slam titles since she won the Australian Open in January 2017. Granted, she had a year-plus absence while having a child,…
Source: NY Post click here for more…