Sideways, I mean I played with an advanced player last week and he was applying heavy topspin on both wings. The ones angled wide were not difficult (just could not get to them), but the ones towards the body gave me great problems. The balls would start towards by backhand, then move in the air straight to my body or my forehand - or start on the forehand and either jam me or move to my backhand. So my backhand preparation went in vain in the first case, and I had to hurriedly switch to my backhand in the second case. The results were disastrous. I tried standing 3 to 6 feet behind the baseline to let the spin die down, but it didn't help.