Williams Jerez

On March 26, 2019, Jerez was traded to the San Francisco Giants in exchange for Chris Stratton.

On September 13, 2019, Jerez was claimed off waivers by the Pittsburgh Pirates. Jerez was outrighted to AAA on November 27.

On July 31, 2018, the Red Sox traded Jerez and pitcher Ty Buttrey to the Los Angeles Angels for second baseman Ian Kinsler. On August 7, 2018, the Angels called up Jerez and he made his major league debut pitching two scoreless innings against the Detroit Tigers. For 2018 with the Angels, he was 0-0 with a 6.00 ERA, and 15 strikeouts in 15 innings.

He opened 2017 at Portland, where he went 2–0 with four saves and 3.10 ERA in 29 games before joining the Triple-A Pawtucket Red Sox in the month of August. He appeared in nine games with the PawSox, going 0–2 with a 3.75 ERA in 12 innings. He finished the year rated as the Red Sox' No. 21 prospect, according to MLB.com. Jerez began the 2018 season with Triple-A Pawtucket.

In 2015 Jerez joined the Low A Greenville Drive, where he went 3–1 with a 2.06 ERA and three saves, striking out 43 in 39⅓ innings of work. He then gained a promotion to High A Salem Red Sox and was more dominant, posting a 1–0 record with a 0.73 ERA and 12 strikeouts in 12 innings. The Portland Sea Dogs would be the fifth stop in just a year and a half for Jerez, as he collected scoreless outings in 13 of 22 appearances since his Double-A debut on June 24, 2015. Overall, he went 5–3 with a 2.54 ERA and four saves in a career-high 41 games during the three stints.

Jerez was added to the Red Sox 40-man roster in November 2015. He remained with the Sea Dogs through 2016, featuring a 1–6 mark with a 4.71 ERA in 40 games, striking out 65 and walking 30 in 65 innings, while earning a selection to the Eastern League All-Star Game.

Then in 2013, he appeared in 38 games and hit a paltry .176/.203/.235 in 38 games while playing right and center field for Lowell. But Jerez turned his career around after moving from outfield to pitcher in 2014. In that season, he posted a 3–1 record with a 2.22 ERA and one save coming out of bullpen for the GCL Red Sox. He ended the season at Lowell, going 1–1 with a 4.50 ERA.

He made his debut with the Gulf Coast League Red Sox in 2012 and collected hits in 11 of 12 games during one early-season stretch, batting as high as .340, but eventually he tapered off. He finished the year batting .248/.285/.310 with five stolen bases, three triples, and just six walks in 32 games.

In 2012, Jerez started 32 games with the Short-Season A Lowell Spinners before missing the remainder of the season with hand injury. Prior to injury, Jerez batted .241 (20-for-83)/.276/.277 with five RBIs and three stolen bases.

Initially attempting to enroll at Gregorio Luperón High School in Manhattan, Jerez later enrolled at Grand Street Campus in Williamsburg, Brooklyn. Jerez played center field at Grand Street for two seasons. He hit .519 with four home runs and 19 RBIs his first season. During his senior year he hit .692 with five home runs and 26 stolen bases, leading Grand Street to the 2011 Public Schools Athletic League (PSAL) Class A semi-finals. Jerez won the PSAL Wingate Award, given to the top senior in each sport. He also played summer baseball for Hank's Yanks, a team sponsored by Hank Steinbrenner. Jerez, however, drew controversy with some opposing coaches believing him to be older than high-school age.

The Red Sox selected Jerez in the second round of the 2011 MLB Draft, signing him with a bonus of $443,700. He was the highest draft pick out of New York City since pitcher Jason Marquis in 1996. Jerez started his career as an outfielder, but was converted to a pitcher during extended spring training in 2014.

Jerez was born in Santiago de los Caballeros in the Dominican Republic. During his childhood, he was primarily a pitcher. In 2009 at the age of 17, Jerez along with his father and sister moved to Bushwick, Brooklyn in New York City. That year, he was discovered in a local park by a former minor league player.

Williams Alexander Jerez (Spanish pronunciation: [jeˈɾeθ] born May 16, 1992) is a Dominican professional baseball pitcher in the Pittsburgh Pirates organization. He was a second round selection in the 2011 MLB Draft by the Boston Red Sox. He has played in Major League Baseball (MLB) for the Los Angeles Angels, San Francisco Giants, and Pittsburgh Pirates.