Manager Bruce Bochy confirmed that Cain (forearm) would make one more rehab start before rejoining the Giants, John Dickinson of 95.7 The Game reports. Cain has made three rehab starts to date, with the last two coming at Triple-A Sacramento. He's fared well in those outings with a 15:3 K:BB ratio over 13.2 innings, but the Giants may want to stretch him out just a little bit more before working him back to the fold. He's tentatively on track to rejoin the Giants late next week.