Blue Jays' Roberto Osuna: Throws successful side session

Osuna (neck) threw a side session Saturday and is expected to return to game action Monday, John Lott of The Athletic reports.

Analysis:

Osuna has been bothered by a bad mattress, but says he's feeling better after a few days of rest. The young right-hander is already back on the mound and should be good to go for Opening Day as he looks to build off his 36-save campaign last season.