Grigor Dimitrov has been looking happier than ever on his Instagram - probably because of his new relationship with Nicole Scherzinger. His new girlfriend will definitely help him put Maria Sharapova in the past!

According to Perez Hilton, "Nicole Scherzinger has been cozying up to 24-year-old tennis pro Grigor Dimitrov since July. The pairing comes just nine months after Nicole and her long time boyfriend Lewis Hamilton parted ways."

A source commented, "They're completed besotted with each other. But they've been careful not to be pictured together because they don't want the pressure of the relationship being in the public eye."

Sounds like Grigor Dimitrov and Nicole Scherzinger are ready to start their relationship.

In fact, the Bulgarian tennis player might have regretted his relationship with Maria Sharapova, according to the most recent interview. While Maria Sharapova is living the high life having totally gotten over Grigor Dimitrov, the Bulgarian may still be thinking about his ex girlfriend.

According to Tennis World, Grigor Dimitrov reflected about the past season and revealed that he does not want to make the same mistakes he made. "I did well in Australia, I had my chances against (Andy Murray), but then things turned out. After that match I lost a little bit of confidence, I changed a my racquet and I had some changes off court.... I started to make things wrong in practice, my fitness level wasn't good and so I didn't play a very good tennis. Hopefully I'll learn quite enough from it and I hope I don't make the same mistake in 2016."

Maybe keeping a relationship with Maria Sharapova was the "mistake" that he made in 2015.

The truth is, some men can't handle having a super successful girlfriends. In just one season, he slipped in ranking from world number 11 to 26. Talk about a downward spiral. Let's hope that having a girlfriend like Nicole Scherzinger means that he won't feel threatened in his career.

Do you think Grigor will ever get to Maria's level? Let me know in the comments below!