The Astros reinstated Matthews (knee) from the 60-day injured list Saturday, Matt Kawahara of the Houston Chronicle reports.
Matthews has missed the entire second half due to a left knee sprain, but he's now been cleared to return and aid the Astros in their push for a postseason appearance. The 24-year-old will almost certainly be limited to a bench role, however, as he owns a .582 OPS through 226 plate appearances this season and went just 1-for-24 with 12 strikeouts during his rehab assignment. Jorge Barrosa was DFA'd in a corresponding move.