RHP Adam Warren (back) will throw on flat ground this Saturday afternoon and is still hopeful of returning from the disabled list by the end of the season, according to MLB's Bryan Hoch.
Warren was placed on the disabled list on September 6 (retroactive to September 3) and was given no timetable to return.
The reliever, who had a stint on the DL earlier this season because of shoulder inflammation, has a 2.40 ERA, one save and 53 strikeouts in 56.1 innings this year.
Warren's last outing came on September 1, when he allowed one hit and zero runs in one inning. Before that game against the Red Sox, Warren gave up at least one run in his previous four appearances.