One time we had a football player with hemoptysis, and we thought it was from trauma during the game, but with some investigating, we found that it was a lung tumor. Patients who have nondisplaced rib fractures require a period of watchful waiting, and those who have displaced rib fractures with hemoptysis or other symptoms should be hospitalized for observation. Some tears require surgical repair, and pneumothoraces require lung reexpansion. If hemoptysis doesn't recur, the athlete can probably be cleared for play. Pain is a limiting factor with rib fractures.
Players are pretty uncomfortable with twisting and turning.
Patients who have pulmonary surgery are typically out for at least several weeks. Sometimes fitting the flak jacket under the jersey is a problem. That's usually not a problem for bigger players, but for smaller people an equestrian-style chest protector often works well. Injury imperils Lindros' season. Collapsed lung will keep Lindros off the ice for Flyers.