10 things we learned from Wimbledon

     The 2015 Wimbledon championships lived up to the hype. Novak Djokovic reminded us that he is still the number one tennis player in the world and Serena Williams completed her "Serena Slam" with a calendar grand slam remaining a possibility. What I would like to do is recap the event by listing ten things to take away from the two weeks that were on the grass in London.

#1. Serena Williams is on a mission: Serena Williams did everything she could to prevent the media from talking to her about the "Serena Slam" and the possibility of a calendar grand slam, but make no mistake, this was on her mind the entire two weeks. She knows that if she wins a calendar grand slam in addition to the "Serena Slam", there is no reason to not say she is the greatest female tennis player ever. Steffi Graf in my opinion can already step aside  as can Margaret Court, but a calendar grand slam would just about be the icing on the cake. Winning 25 grand slams would officially do it for academic purposes, but Serena knows that if she wins the calendar slam, nobody will say she isn't the greatest ever.

#2. Novak Djokovic reminded us he's the best player in the world: After winning Wimbledon, Novak Djokovic should have silenced any critics who say he isn't the best player in the world. I think had Roger Federer won the title, there would be some room for debate, but at the moment, Novak Djokovic has a firm grip on the world #1 ranking while also having two grand slam titles in 2015.

#3. The WTA is still a crap shoot:  I've been saying for years that the WTA is a crap shoot. The 2015 Wimbledon reaffirmed this fact with Garbine Muguruza being the player to face Serena Williams in the final. I don't want to take anything away from Muguruza. She had a fantastic tournament and deserves all the credit in the world for what she accomplished at Wimbledon. But what I'm talking about is that week in week out, there is no consistency on the WTA tour outside of the fact that Serena Williams continues to dominate everybody she faces.

#4. Will Andy Murray win another Wimbledon? After seeing Andy Murray lose in straight sets to Roger Federer in the semifinals, one does have to wonder whether or not we will ever see Andy Murray win another Wimbledon title. The good news for Andy Murray is that he still has plenty of years left and he also is in the midst of leading Great Britain to its first Davis Cup title since 1936. Things are still looking good for the Scotsman.

#5. Victoria Azarenka appears to be on her way back: Victoria Azarenka should be feeling good about how things went for her at Wimbledon. She lost in the quarterfinals to Serena Williams and took her to a third set. Azarenka appears to be on a very short list of players who may deny Serena Williams of a calendar grand slam later this summer.

#6. Stanislas Wawrinka may be correct about himself: Now that he has won two grand slam titles, Stanislas Wawrinka rightfully deserves to be considered a contender at every grand slam, but when asked if he deserves to be considered in the same conversation as Roger Federer, Andy Murray, Novak Djokovic, and Rafael Nadal, he hesitates, saying that he can compete with them, but what makes them different is their consistency.

     I don't think we should take Wawrinka's comments to be him simply trying to come off as humble. I genuinely believe that he is telling us what he thinks and I think we need to respect his honesty. As it stands, his results at Wimbledon (losing in the quarterfinals) back up his claims. He is able to put together some really good runs at grand slams, but week in week out he isn't the same player as those other guys I just mentioned.

#7. Venus Williams is probably done as a grand slam contender: I honestly believed Venus Williams was a threat to beat Serena Williams and win the Wimbledon title, but after losing in straight sets to Serena in the 4th round, I have a hard time thinking that Venus Williams can come back next year and win. It appears as though father time really has his grasp on Venus Williams and at best she can survive the opening week of a grand slam.

#8. Rafael Nadal may finally be done as a grand slam contender: I don't want to say that Rafael Nadal is done winning grand slams, but the man already has 14 grand slam titles as it is, and only Roger Federer has been able to go beyond that mark with 17 grand slam titles. 14 was the max for Pete Sampras and if I can be honest, Roger Federer may be sitting on 14 grand slam titles as well if it weren't for the fact that his first few grand slam titles were won in a weaker era. I'm not taking anything away from Roger's 17 grand slam titles, I'm just saying that 14 is a lot and given the way his body is breaking down, it's probably not realistic to expect Rafael Nadal to win another grand slam.

#9. Maria Sharapova needs to find a way to overcome Serena Williams: Maria Sharapova has had a fantastic career. She's won a career slam and has five grand slam titles overall. But I have to say, the way that Serena Williams has dominated her over the years is alarming. Plus, her inability to beat Serena Williams may be what keeps her from winning 10 grand slams or more.

     After her 2-6, 4-6 loss to Serena Williams in the Wimbledon semifinals, Sharapova now has a 17 match losing streak to Serena Williams. That really is unacceptable for a player who has won so many grand slams and found success against every other player on tour. Sharapova has to find a way to get some wins against Serena Williams. Otherwise, her inability to beat Serena Williams will remain a bit of a black mark on an otherwise fantastic hall of fame career.

#10. Grigor Dimitrov is really a disappointment: After appearing to have a breakout season in 2014, with a ranking as high as #8 in the world to go along with a trip to the semifinals of Wimbledon, Grigor Dimitrov has since regressed. He is now #16 in the world and he lost in the 3rd round of Wimbledon to Richard Gasquet in straight sets to follow up a first round loss to Jack Sock at Roland Garros. Perhaps what we saw from Grigor Dimitrov in 2014 is the best we'll ever see from him.

---Ben Parker: follow me on twitter @atp_guy and like my Facebook page ATP Guy Nation to keep up with the world of tennis!