Red Sox: Ranking potential impact of 2019 September call-ups

MILWAUKEE, WISCONSIN - JULY 24: Jhoulys Chacin #45 of the Milwaukee Brewers pitches in the first inning against the Cincinnati Reds at Miller Park on July 24, 2019 in Milwaukee, Wisconsin. (Photo by Dylan Buell/Getty Images)
MILWAUKEE, WISCONSIN - JULY 24: Jhoulys Chacin #45 of the Milwaukee Brewers pitches in the first inning against the Cincinnati Reds at Miller Park on July 24, 2019 in Milwaukee, Wisconsin. (Photo by Dylan Buell/Getty Images) /
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PHOENIX, ARIZONA – APRIL 07: Starting pitcher Hector Velazquez #76 of the Boston Red Sox pitches against the Arizona Diamondbacks during the first inning of the MLB game at Chase Field on April 07, 2019 in Phoenix, Arizona. (Photo by Christian Petersen/Getty Images) /

Hector Velazquez

The most familiar face among the players called up in September is Hector Velazquez. The former Mexican League standout has had some success since joining the Red Sox in 2017, going 10-3 with a 3.12 ERA in 55 appearances (11 starts) over the last two seasons.

The 30-year old hasn’t been nearly as effective this year. Velazquez is 1-4 with a 5.69 ERA in 49 innings. He was relatively stingy with the free passes in previous years but his walk rate has inflated to a career-high 4.3 BB/9.

Velazquez has been counted on as a spot starter at times but his 1-3 record and 6.95 ERA as a starter this season inspires little confidence. Even a rotation as thin as Boston’s can’t afford to give him another shot when their margin for error is razor thin.

His time in the bullpen hasn’t exactly been a smashing success this year either, producing a 4.67 ERA in 27 innings. Velazquez posted a solid 3.31 ERA in 16 1/3 relief innings for Triple-A Pawtucket but he walked nearly as many batters (11) as he struck out (14).

Velazquez is likely going to be relegated to mop-up duty this month. He’s capable of providing multiple innings and can help keep the top arms in the bullpen fresh by handling some of the low-leverage situations.