Garrett Crochet had an impressive major league debut, reaching 101 mph on the radar gun.
Crochet struck out two in one inning of relief, but it was a mixed bag of results for Chicago White Sox rookie pitchers in a 7-1 loss to the Cincinnati Reds on Friday at Great American Ball Park in Cincinnati.
Jonathan Stiever surrendered four home runs in his second big league start, allowing six runs on five hits with two walks in 2 2/3 innings.
Nick Madrigal had two hits and scored the only run for the Sox (33-18), who lost for just the second time in nine games. The Sox magic number for clinching the American League Central remained at seven, pending the result of the Twins' game against the Cubs.
The Sox, who clinched a playoff spot Thursday, were done in by the long ball.
Nick Castellanos hit a solo home run to left in the first. Tucker Barnhart began the third with a solo home run to right, the first of three homers for the Reds in the inning. Joey Votto homered to center and Jesse Winker hit a three-run homer to right-center, making it 6-0.
Madrigal doubled and scored on an Eloy Jimenez groundout in the sixth. The Sox loaded the bases with two outs, but Tejay Antone struck out Luis Robert to end the inning.
Crochet entered in the sixth. The Sox announced they had called up him from Schaumburg before the game. And he quickly made an impression.
The left-hander, who was the No. 11 pick in this year's draft out of Tennessee, struck out the first two batters he faced.
He fanned Brian Goodwin on a 100-mph fastball and struck out Jose Garcia on a 101-mph heater. He got Barnhart to ground out to first to complete his perfect inning of work.