Jason Grilli, a bargain, would bear heavy load in current bullpen

Jason Grilli is returning to the Blue Jays on a $3 million team option in 2017

With 2017 creeping around the corner, it looks like the Blue Jays’ bullpen construction will be based more on competition than name-brand signings. So far, at least.

Jason Grilli is the lone lock outside of Roberto Osuna — perhaps Joe Biagini if you believe in the recent rotation depth added by the Blue Jays on minor-league deals — and given the current market for relievers, he’s coming back at a bargain price.

Grilli’s $3 million team option for the coming season was a no-brainer, which wasn’t the case when he was acquired in late May as part of a dollars-and-cents move with the Atlanta Braves. If the 3.64 ERA and…