GOODYEAR, Ariz. -- Texas Rangers slugger Prince Fielder returned to camp Friday after taking part in a sleep study and being diagnosed with sleep apnea.
Fielder left camp Wednesday and traveled to Texas to take part in a 48-hour sleep study after having trouble getting rest during spring training.
Sleep apnea is a condition that causes gaps in a person's breathing while sleeping, and Fielder told reporters that he stopped breathing 39 times per hour during his study. He said doctors told him that more than 30 is considered serious.
Fielder, who was in the lineup for Friday's game against Milwaukee, told reporters that he has been using a mask and a breathing device since taking part in the sleep study and has no immediate plans to have surgery.