Red Sox facing uncertainties about rotation heading into break

The Red Sox rotation is facing a great deal of uncertainty headed into the All-Star break. Right-hander Garrett Whitlock was placed on the injured list earlier this week with elbow inflammation, joining Tanner Houck, Chris Sale, and Corey Kluber on the shelf among the club’s starting options.

It seems their lack of rotation options won’t be cleared up anytime soon, as Alex Cora told reporters, including The Boston Globe’s Julian McWilliams, that the club has no intention of moving right-hander Nick Pivetta out of his current bulk role out of the bullpen. 

What’s more, Alex Speier of The Boston Globe relays that Cora indicated to reporters that Houck, who is expected to begin throwing again next week, could be ramped up for “a role other than starter” as he looks to return from the injured list. 

With Pivetta sticking to relief work and Houck seemingly poised to join him upon his return, it seems that Boston will be relying on bullpen games and spot starters to cover innings alongside James Paxton, Brayan Bello, and Kutter Crawford for the time being.

It’s easy to see why the club would prefer both Pivetta and Houck out of the bullpen. Pivetta posted a 6.30 ERA in eight starts this season prior to his mid-May move to the bullpen, but has become one of the most reliable relievers in the club’s bullpen since then. 

In 29 innings of relief across 14 appearances, Pivetta has dominated hitters to the tune of a 2.79 ERA and 3.29 FIP, with a strikeout rate of 33.7%. Houck, meanwhile, scuffled to a 5.05 ERA across 13 starts this season prior to his placement on the IL. 

While advanced metrics generally agree he’s pitched a bit better than the results would otherwise indicate, with a FIP of 4.24 and an xERA of 3.85, it’s easy to see why Boston would be enticed by Houck’s career 2.68 ERA in 53 2/3 innings out of the bullpen.

One pitcher who seems clearly ticketed for a long-term role in the rotation is Bello, who’s impressed with a 3.04 ERA and 3.78 FIP across 14 starts this season. 

According to WEEI’s Rob Bradford, the young right-hander was asked by reporters if the Red Sox had approached him regarding extension conversations, which Bello indicated they had not done. That being said, the 24 year old went on to express openness to the idea.

“I would love it. I love this organization.” Bello said. “I would love to stay here, but I haven’t really given it much thought.”