Cubs outfielders hit 6 home runs in a 10-1 win over the Reds, but Tyler Chatwood leaves early with an elbow injury

The Chicago Cubs’ mettle was put to the test Sunday after Tyler Chatwood left in the bottom of the third inning with right elbow discomfort.

But thanks to six home runs — two apiece by outfielders Jason Heyward, Ian Happ and Kyle Schwarber — and three innings of sterling relief from Jose Quintana, the Cubs pulled away to a 10-1 victory over the Cincinnati Reds.

Those efforts proved timely as the Cubs (20-14) earned a split in the four-game series. Now they’ll use Monday’s day off to try to fortify their 28-man roster before the 3 p.m. trade deadline.

This marked the first time since at least 1901 that three starting outfielders from the same team hit two or more home runs apiece. And it was the first time the Cubs had three players hit at least two homers each since April 16, 1955, when Ernie Banks, Randy Jackson and Dee Fondy hit two each in a 12-11 loss in St. Louis.