OAKLAND -- Trayce Thompson's stay with the A's came to an end Tuesday. The move accompanied several others ahead of the club's highly anticipated free game against the White Sox.
Thompson was designated for assignment to make room for Tuesday starter Trevor Cahill. In addition, right-hander Yusmeiro Petit was placed on the family medical emergency list, and the team's No. 27 prospect, Lou Trivino, was promoted from Triple-A Nashville in his stead.
Petit, who appeared in 10 of the A's first 17 games, is tending to a family health situation and, per manager Bob Melvin, is expected back Saturday.
Trivino is anticipating his Major League debut. The hard-throwing righty, who comes with elite velocity that can reach triple digits, retired all 13 batters he faced with Nashville -- eight by strikeout -- after impressing the big league staff in Spring Training by way of a 1.93 ERA over four appearances.
"This is a guy we kind of targeted going into Spring Training as a guy that would probably be here at some point in time this year," Melvin said of Trivino.
Trivino, 26, got the word from Triple-A manager Fran Riordan just before midnight Monday -- in the middle of a pizza run, shortly after touching down in Des Moines. He was there for roughly five hours before catching another flight.
Trivino immediately phoned his parents in Philadelphia, waking them up with the news, and hopes they can be in the stands as soon as Wednesday. The A's 2013 11th-round Draft pick has quietly climbed the ranks with consistent results in recent years, his last producing the best yet -- he turned in a combined 3.03 ERA between Double-A Midland and Triple-A in 2017.
He believes he's an even better version of that pitcher now.
"Being able to command the zone a little bit better," Trivino said. "Especially this year, I was very thankful of how I'm able to attack the zone and be more aggressive with hitters. Not falling behind too much and, if I am, I'm converting the 1-1 counts. I've just been able to be a little more consistent this year. Granted, it was three games, but so far, so good."
Thompson, who was enjoying time with brother and Golden State Warriors star Klay Thompson, has already been employed by three teams this year.
When a player's contract is designated for assignment -- often abbreviated "DFA" -- that player is immediately removed from his club's 40-man roster, and 25-man roster if he was on that as well. Within seven days of the transaction (it was previously 10 days), the player must either be traded, released or placed on irrevocable outright waivers.
"It was difficult letting him go, because he fit in really well here," Melvin said. "The guys liked him, the coaching staff loved him. He was a hard-working guy. Certainly we'd love to be able to keep him in the organization. If not, I hope he lands in a good place and he gets to actually stick somewhere and play, because it's difficult to go through this once, let alone three times, so you feel for him, because he's such a good kid on top of it."