The White Sox claimed right-hander Zach Stewart off waivers from Pittsburgh, the team announced Thursday. Stewart pitched for the White Sox in 2011 and 2012 before heading to Boston as part of the deal that landed the Sox Kevin Youkilis last June.
Stewart, 26, pitched in 28 games with the White Sox, making nine starts. In his career, Stewart has a 7.51 ERA over 14 starts in which he's allowed 18 home runs. He's fared better as a reliever, but still owns a 5.02 ERA out of the bullpen with seven home runs allowed in 28 23 innings.
The right-hander was acquired by the White Sox in 2011 along with Jason Frasor in a deal with Toronto which sent Edwin Jackson and Mark Teahen to the Blue Jays. He came close to throwing a perfect game on Sept. 5, 2011 in Minnesota, holding the Twins without a baserunner until allowing a leadoff double to Danny Valencia to open the eighth inning. Stewart wound up throwing a one-hit shutout in that start.
The White Sox added Stewart to their 40-man roster, which now has 39 players on it.
With some of baseball's top pitching talent in the White Sox system, who better to talk about them than longtime White Sox pitching coach Don Cooper? Coop gives us the goods on Michael Kopech, Alec Hansen, Reynaldo Lopez, Dylan Cease, Joakim Soria and many others. He reveals the adjustment Lucas Giolito made last season that changed everything for the young right-hander, the one White Sox pitcher he thinks will make a big jump in 2018, and explains why he thinks the White Sox could surprise people in 2018.
Listen to the full episode at this link or in the embedded player below:
The White Sox rebuild is in full swing. While it might still be a year or two before the big league team is expected to start competing for championships, the minor leagues are stocked with highly touted talent fans will be eagerly following in 2018. With that in mind, it's time to Meet the Prospects and get to know the future of the South Side.
Vieira, the 24-year-old right-handed hurler, has just one inning of big league ball under his belt.
A native of Brazil, Vieira made his major league debut last season for the Seattle Mariners, pitching one scorless inning — and striking out one batter — in an Aug. 14 loss to the Baltimore Orioles. He's since joined the White Sox rebuild, acquired in a November trade that sent international bonus slot money back to the Pacific Northwest.
In the minors last season, Vieira split time between Double-A Arkansas and Triple-A Tacoma, combining for a 4.00 ERA in 54 innings of 41 appearances. He struck out 46 hitters and walked 22. In previous minor league seasons, he showed a good ability to strike out opposing hitters, posting a 10.8 K/9 with Class A Bakersfield in 2016.
As of their most recent rankings, MLB Pipeline had Vieira rated as the No. 20 prospect in the White Sox organization.
Get to know Vieira in the video above.