Matt Robidoux pictured far right

Speedy Ortiz frontwoman Sadie Dupuis wrote on Twitter today that the band's guitarist Matt Robidoux is on an indefinite hiatus from the band. Devin McKnight, guitarist for Boston band Grass Is Green, will be standing in on all of Speedy's upcoming tour dates.

Robidoux is one-half of the band Pony Bones.

Watch Speedy Ortiz perform "Tiger Tank" at 285 Kent: