Fantasy baseball injury updates: How to replace Fernando Tatis or Jacob deGrom

Could Tatis' third shoulder injury be season-ending? (0:59)

Buster Olney gives an update on Fernando Tatis Jr.'s shoulder injury and whether he can return this season. (0:59)

While so much of the major league baseball talk this past weekend centered on the many former Chicago Cubs homering in their debuts for new teams, the fantasy baseball world anxiously awaits updates on two of the top performers in the sport. San Diego Padres shortstop Fernando Tatis Jr. left Friday's game after aggravating his shoulder injury, while a Friday MRI on New York Mets right-hander Jacob deGrom revealed troubling results.