The Cactus League and Arizona community leaders have asked Major League Baseball to delay the start of spring training due to coronavirus concerns just over three weeks before pitchers and catchers are supposed to report.

The Cactus League made the request in a letter to Baseball Commissioner Rob Manfred obtained by The Associated Press on Monday. The letter was co-signed by the mayors of Mesa, Scottsdale, Surprise, Glendale, Goodyear and Peoria, as well as representatives from Phoenix and the Salt River Pima-Maricopa Indian Community.

MLB said in a statement that it “will continue to consult with public health authorities, medical experts, and the players’ association whether any schedule modifications to the announced start of spring training and the championship season should be made in light of the current COVID-19 environment to ensure the safety of the players, coaches, umpires, MLB employees and other game day personnel in a sport that plays every day.”

Arizona is averaging just under 7,000 new coronavirus cases per day, but the Cactus League cited data in its letter from the University of Washington’s Institute of Health Metrics and Evaluation projecting a sharp decline in infections by mid-March, down to as few as 3,072 daily. Spring camps are set to open the week of Feb. 15, with the regular season set to start on April 1.

Despite the roiling case numbers, the NHL’s Arizona Coyotes are hosting 3,450 fans for home games in Glendale, while the NBA’s Phoenix Suns are playing without fans. High school sports are also still operating. The Cactus League hosts 15 MLB clubs.

In a sign that other teams are moving forward with preseason plans, the spring training home in Jupiter, Florida, shared by the St. Louis Cardinals and Miami Marlins announced Monday it will begin selling tickets for spring games beginning Feb. 1.