hi Judy, only 1 way I can think of....there would have to be a runner on say 1st and 2nd, so infield fly rule would be in effect.....thus, batter would be out....runner on first passes runner on 2nd.....he's out, runner on 2nd base would have to be standing off the bag....the infield pop up, comes down, bounces and hits the runner on 2nd base that standing off the bag...triple play