This article was originally published on www.si.com as Astros Provide Positive Update on Slugger Yordan Alvarez's Injury Rehab. As they attempt to hold off the Mariners in a furious American League West race, the Astros may soon have back one of their most formidable weapons.

As the MLB regular season nears the end, teams are looking to get back important names who have been out due to injury. Contending teams will need the added depth as the postseason comes around.

Javier threw three innings and 46 pitches in the outing. Spencer Arrighetti is also set to join Double-A Corpus Christi this week to begin a rehab assignment in his return from a right thumb fracture.