Linebrink was out since July 30 because of a lower back strain. He showed some rust in the sixth inning of a 6-5 loss to the Cubs on Sunday, when he was pressed into duty in relief of Brandon Beachy. Linebrink, who inherited a runner on first base, allowed three consecutive singles, with the final knock scoring two runs. He was pulled without retiring a batter, finishing with two earned runs. For the season, Linebrink has pitched in 51 games before, posting 4-2 record with a 3.38 ERA.
The right-hander took the loss in Cincinnati on July 24 but didn't allow a run over his next four appearances. He has 33 strikeouts to 15 walks in 42 2/3 innings for the year, with opponents batting .273.
Varvaro made seven relief appearances for the Braves after he was promoted from Triple-A Gwinnett and was 0-0 with a 3.00 ERA. The right-hander struck out 16 and walked six in nine innings, allowing seven hits.
Despite the return of catcher Brian McCann from the DL, the Braves kept J.C. Boscan as a third catcher. Boscan is likely to return to Gwinnett when the Braves need to open a spot for Randall Delgado, who will start in place of Tommy Hanson on Tuesday against the Giants.