DES MOINES, Iowa — Slumping slugger Kyle Schwarber said Monday that he’s not surprised the Chicago Cubs demoted him, saying “the numbers spoke for themselves.”

Schwarber’s October return following a knee injury helped fuel Chicago’s first World Series title in 108 years, but he was sent down to Triple-A Iowa on Thursday after hitting .171 in 64 games this season.

Schwarber joined Iowa in time for Monday’s home game against New Orleans, where he hit third and played left field. He was 1 for 4 in a 1-0 victory.

The 24-year-old said the Cubs haven’t given him a timeline for a return to the majors.

“A demotion is a demotion. That’s obviously something that you don’t want to have, and it ticks you off a little bit,” Schwarber said in his first public comments since being sent down. “You can’t press, you can’t do anything like that. But you try to make things happen. You’ve got to go back to what made you successful in the first place.”

Schwarber last played for Iowa in 2015, when he hit .333 in 60 at-bats to convince Chicago he was ready for the big leagues.

Schwarber went on to hit 16 home runs in 69 games for the Cubs that year, helping them advance to the National League Championship Series.