"Keep him fresh," manager John Gibbons said of his outfielder. "Give him a day. He'd been going hard, playing all those games down there [in the heat in Texas]."
Toronto's everyday center fielder had found himself missing a handful of starts earlier in the season when facing left-handers, but that isn't as big of a concern anymore.
Rasmus has started 13 of the club's 19 games against left-handed starters, including six of the last seven.
So far this season, Rasmus is hitting .232 against lefties with two home runs and eight RBIs in 69 at-bats, a substantial improvement from 2012 when he hit .182 with three home runs and 12 RBIs in 154 at-bats.
Evan Peaslee is an associate reporter for MLB.com.
This story was not subject to the approval of Major League Baseball or its clubs.