By Sam Bush

It’s only the first days of spring training, and Phillies starter Jake Arrieta is already a question mark.

The Inky is reporting that Arrieta underwent knee surgery a couple weeks ago to address a meniscus injury suffered during a weight training session, per manager Gabe Kapler.

Arrieta is still expected to be ready for the start of the regular season.

The Phillies signed Arrieta last March to a three-year, $75 million contract.

In his first season with the Phillies, the right-hander posted a 10-11 record with a 3.96 ERA and a 138/57 K/BB ratio in 172 2/3 innings.

Provided he is indeed healthy, Arrieta will slot in at No. 2 in the Phillies’ rotation behind Aaron Nola.

In other rotation-related news, Jerad Eickhoff experienced recurring carpal tunnel symptoms last month after having undergone surgery for it at the end of last season, according to Scott Lauber. Eickhoff is hoping to snag a spot at the back of the rotation.