Paxton (hamstring) will be activated from the 15-day injured list and is expected to be reinserted into Boston's rotation sometime during next weekend's series with the Cardinals at Fenway Park, Ian Browne of MLB.com reports.
He won't be used in the two-game series in Atlanta, but will start one of the following games. Manager Alex Cora didn't rule out the possibility of the Red Sox utilizing a six-man rotation, but Boston has off days Monday and Thursday, so a six-man unit would stretch the length between outings for their starters in the short term. Paxton has a 3.68 ERA, 1.16 WHIP and 17:10 K:BB in 14.2 innings over his last three rehab starts, his most recent of which came Friday with Triple-A Worcester.