The Cactus League will come back to Mesa and the rest of Arizona within weeks â but fans will find it hardly recognizable. Donât expect the usual capacity crowd of more than 15,000 loyal Chicago Cubs fans at Mesaâs Sloan Park or kids clamoring for autographs as players take a leisurely stroll across the parking lot between the practice fields and Tempe Diablo Stadium. These, and many other familiar scenes from Cactus League seasons past, will not be possible this year as officials try to strike a delicate balance between the return of spring training and preventing another disastrous spike in COVID-19.