FC Dallas is pulling out of the MLS is Back Tournament after having multiple players test positive for COVID-19, the league announced on Monday. The team reportedly had 10 players and one coach test positive for the coronavirus last week. Those positive tests came after the team was already in Orlando for the tournament.

"Given the impact of the number of positive tests on the club's ability to train and play competitive matches, we have made the decision to withdraw FC Dallas from the MLS is Back Tournament," MLS commissioner Don Garber said in a press release. "The health of everyone involved in our return to play has always been our top priority, and we will continue to make decisions consistent with that priority."  

MLS was planning to have all 26 of its teams participate in the MLS is Back Tournament, which is set to kick off on Wednesday. FC Dallas had its first game -- originally scheduled for Thursday -- postponed after the positive tests. It's currently unclear how MLS will rearrange the tournament schedule.

Earlier on Monday, it was reported that LAFC star and reigning MLS MVP Carlos Vela was opting out of playing in the tournament in order to stay home with his family. 

MLS is hosting the month-long tournament inside of a "bubble" in Orlando, with teams playing a World Cup-style tournament. The tournament -- which is schedule to run until Aug. 11 -- will be the league's first action since early March when MLS shut down the 2020 season after just two games due to the coronavirus pandemic. The MLS is Back Tournament results count toward regular season standings and the winner earns a spot in the 2021 CONCACAF Champions League.

The National Women's Soccer League (NWSL) began a similar, league-wide tournament last month -- the 2020 NWSL Challenge Cup. The NWSL also had a team, the Orlando Pride, drop out before the tournament before it began due to numerous positive cases but was able to start play.