Nathan had a thumbnail issue after his most recent appearance Thursday against the Orioles, the Tigers' official site reports. Nathan's thumbnail was cutting into his thumb, according to manager Brad Ausmus. Upon the completion of his outing, Nathan had blood on his pants, and it's believed that he was having difficulty gripping the ball. Command has been a problem for Nathan this spring, while his fastball was clocked at 89-90 mph during Friday's appearance. Nathan was scheduled for three straight off-days following Thursday's appearance anyway (he had pitched on consecutive days), and the hope is that he'll be ready to pitch again early this week. Ausmus told reporters that there is no late-spring competition for the closer role, though it should be noted that Joakim Soria picked up the save Friday and that he hasn't allowed a baserunner since March 12.