Astros activate Evan Gattis following offseason hernia surgery

The Houston Astros activated designated hitter Evan Gattis from the disabled list after their 8-2 win over the Kansas City Royals on Monday night.

Gattis, 29, underwent sports hernia surgery in February and missed the Astros' first seven games of the regular season while recovering.

He is coming off his best offensive season, with 27 home runs and 88 RBIs in his first year with the Astros after spending his first two major league seasons with the Atlanta Braves.

Infielder Matt Duffy was optioned to Triple-A Fresno to make room on the roster.

Gattis and the Astros avoided salary arbitration by agreeing to a one-year contract days after his surgery. The deal is for $3.3 million, a source told ESPN's Jerry Crasnick. It calls for a $3.3 million salary this year and includes a $5.2 million club option for 2017 with a $100,000 buyout.

The Associated Press contributed to this report.