Per Nick Cafardo of the Boston Globe, the A's and Astros have "mutual interest" in making a deal for Gray happen.
"The A’s are following the Astros’ system closely," Cafardo wrote. "There’s mutual interest in getting something done for Gray as injuries have beset the Astros’ pitching staff and they need reinforcements both in the rotation and the bullpen if they are to continue their great start."
Even though the Astros' 46-23 record is the best mark in Major League Baseball, their starting rotation has become a problem area due to injuries. Dallas Keuchel, Lance McCullers, Charlie Morton and Collin McHugh are all currently on the disabled list.
There is an added bonus for the Astros if they pursue Gray. He's still under team control through 2019, and he's only making $3.575 million this season, per Baseball-Reference.com.
Gray has had his own injury issues, including starting this season on the disabled list with a back injury. The 27-year-old has made nine starts since returning on May 2. He's sporting a 4.44 ERA with 54 hits allowed and 53 strikeouts in 52.2 innings.