Kenley Jansen and the Los Angeles Dodgers endured a scare last August when the closer experienced an irregular heartbeat the morning of a series beginning with the Colorado Rockies at Coors Field.
It marked a second time in six years Jansen experienced the trouble in Denver. He was taken to a local hospital and returned to Los Angeles. Jansen was placed on the 10-day disabled list (now the injured list).
He eventually required a heart procedure last November, which was said to have removed any risk for Jansen pitching at high altitude. He expressed excitement over the opportunity to return to Coors Field, and got his chance to pitch in Saturday’s win.