A’s To Place Lucas Erceg On IL With Forearm Tightness

The A’s will place setup man Lucas Erceg on the 15-day injured list, manager Mark Kotsay told reporters on Thursday afternoon (via the MLB.com injury tracker). The right-hander experienced forearm tightness while warming up on Tuesday. He’s headed back to Oakland for further evaluation.

While Erceg isn’t as dominant as late-inning bullpen mate Mason Miller, he has been a key leverage arm in his own right. He’s carrying a 2.86 ERA with a 31% strikeout rate over 22 innings. Half the batted balls he has allowed have been hit on the ground. Erceg has averaged nearly 99 MPH on his fastball and has gotten swinging strikes on almost 13% of his offerings. He’s second on the team behind Austin Adams with eight holds and has picked up a pair of saves.

This has the makings of a breakout season for Erceg, who turned 29 earlier this month. He began his career as a reasonably well-regarded third base prospect in the Milwaukee system. When his bat plateaued in Triple-A, the Brewers moved him to the mound. Milwaukee abandoned the experiment when they traded Erceg to Oakland for cash last May. The A’s lived with some inconsistent results in his rookie campaign — a 4.75 ERA with a huge 14.3% walk rate over 55 innings — and have been rewarded through this year’s first couple months.

A healthy Erceg would make for an interesting trade candidate this summer. The A’s certainly don’t need to move him. He has five more seasons of team control and won’t get to arbitration until the end of 2025. There’s clear appeal to a Miller/Erceg pairing in the late innings. If the A’s decide to stretch Miller back out as a starter next year, Erceg could be their first choice to close.

Still, there’s also an argument for trying to sell high on Erceg. His winding career path means he’s well into what would typically be a pitcher’s prime (although it’s possible he’ll develop later than most because of his relative inexperience on the mound). Relief pitching tends to be volatile and Erceg’s command is still a work in progress. While this season’s 9.2% walk rate is average for a reliever, he had generally walked between 13-15% of opponents before this year.

Trade speculation is conditional on him being on the mound in July. He’s set to be out at least into the middle of June. The upcoming testing will reveal whether he’s in line for a longer absence and if there are any structural concerns.