I wouldn't think so - What do you mean by a leggy sprout? No leaves or something?

It sounds like they aren't getting enough light (leggy usually means they are reaching for any possible light). Try to put as close as possible to a light source for 12 hours a day or more.

Sorry I was out of town for the last few days. I tried to post a picture of my tubers, but I dont think it is possible in this forum. My tubers where stored for the winter and when I took them out few days ago for germination they had long (4 to 5 inches) stems (not leaves).
My question is:
1. should I completely remove these stems ?
2. should I pinch them or cut them to one inch long?
3. or what should I do?