Peavy (back) will likely rejoin the rotation next weekend against the Rockies, CSN Bay Area reports. Peavy gave up one run over six innings in Sunday's outing for Triple-A Sacramento, making what will likely be the last rehab start of his assignment. With Matt Cain (forearm) also nearing a return, it seems likely that only one of Tim Lincecum, Tim Hudson and Ryan Vogelsong will keep his spot in the rotation.