Check out the complete line of IPG games at www.interactionpoint.com
No limit. You will find that the more you score, the more you have over your opponent. Momentum.....
This disparity in size of hands will last until half-time or the end of regulation, when the coach can gather the guys on the sideline for an inspirational speech and "reset" the momentum factor (i.e. both coaches discard their entire hands and re-draw seven new cards).