There are a total of 8+4+2+1 = <<8+4+2+1=15>>15 games of tennis in a typical tournament
If 1 game uses 5 cans of tennis balls, then 15 games would use 15*5 = 75 cans of tennis balls
If 1 can of tennis balls has 3 balls, then 75 cans would have <<75*3=225>>225 balls
#### 225