Open Ice, by Pat Hughes (Random House, 2005).
Sophomore Nick Taglio is passionate about one thing (other than girls): hockey. When he suffers yet another concussion, amid fears that a further injury could result in permanent damage, his doctor and parents are adamant that he quit playing. Nick struggles to come to terms with his new circumstance, while having to deal with family, friends, girlfriends, teammates, and that splitting headache, as he tries to recover.
Open Ice was nominated for the ALA's Quick Picks for Reluctant Young Adult Readers.