Stars compete in the 44th season of World TeamTennis

World TeamTennis is back in action with many players returning from last year and some new but familiar players joining for the 2019 season. The Vegas Rollers and Orlando Storm were added to the team count for the 44th season, expanding the total team number to eight.

A number of top players including Venus Williams, Sam Querrey, Amanda Anisimova, Frances Tiafoe, Madison Keys, Bob and Mike Bryan, Victoria Azarenka and Sloane Stephens are battling for their respective cities. The fun-filled action runs from July 14 through August 3.

Representing the Washington Kastles, seven-time Grand Slam champion Williams took the doubles court last Friday with youngster Marta Kostyuk. The pair lost a few crucial points which lead to them falling to New York Empire's Maria Sanchez and Kirsten Flipkens. Venus would beat Flipkens in the singles rubber.

Olympic gold medalist Monica Puig played her first WTT match with the Vegas Rollers on Saturday. Puig was able to post points on the board by defeating Springfield's Anna Blinkova. However, it wasn't enough to capture a team win.

Azarenka helped the Orange County Breakers score a win over the San Diego Aviators in their home opener.

Querrey​, who is fresh off his quarterfinal run at Wimbledon, continued his dominating play on Saturday against San Diego Aviator's Taylor Fritz. In San Diego's home opener, Querrey clinched the victory for Vegas as he dismissed Fritz, 5-4.

Feliciano Lopez has been loving every minute of playing for the Philadelphia Freedoms, who have won seven matches in a row.

World No. 33 Danielle Collins is also playing alongside Verdasco on the successful Philadelphia Freedom.

On Monday night, CoCo Vandeweghe played her first match of 2019 by suiting up for the San Diego Aviators. The former world No. 10 dropped her doubles set with Anna-Lena Gronefeld, but won in singles over Taylor Townsend.

The Springfield Lasers took home the King trophy for the first time last year when they defeated the Philadelphia Freedoms in the finals. The Lasers are currently in second place, trailing behind the seemingly unstoppable Freedoms.

There's a lot of team tennis left to be played with the finals scheduled for August 3.