The Braves’ expanded roster in September could eventually include another prospect or two, but the first additions figure to be a pair of relievers coming off the disabled list Friday and three position players likely to be activated the next week.

Relievers right-hander Luke Jackson and left-hander Ian Krol are set to pitch for Triple-A Gwinnett on Wednesday and be activated Friday before the second game of the Braves’ four-game series against the Cubs in Chicago.

Versatile rookie infielder Johan Camargo (bone bruise in knee) and third baseman Adonis Garcia (finger-ligament surgery) are likely to be activated Sept. 4 or Sept. 5 before one of the first two games of the Braves’ next homestand.

Camargo has been out since Aug. 9 after a freak incident when he was hurt while running onto the field before a game. Garcia has been out since mid-June.

Utility man Danny Santana (quadriceps strain) could also be activated next week, though he might be a couple of days behind Camargo and Garcia.

Braves manager Brian Snitker said Camargo and Garcia flew to Florida on Monday and would take some live batting-practice sessions against rehabbing or minor-league pitchers at the team’s Lake Buena Vista camp before beginning a minor-league rehab assignment late this week or the weekend. They’ll probably play minor-league games through Sunday or Monday, the last day of the minor-league regular season for most teams.

Jackson has been on the DL since Aug. 19 with a strained pitching shoulder and Krol has been out since Aug. 4 with a strained oblique in his left side.

Krol has made three minor-league rehab assignments, allowing two hits, no earned runs and no walks with five strikeouts in four innings including a two-inning stint with one hit Sunday for the Single-A Florida Fire Frogs.

Jackson hadn’t made a rehab assignment before Monday.