​BOSTON, MASSACHUSETTS – AUGUST 23: Matt Wilkinson #71 of the San Francisco Giants pitches at Fenway Park on August 23, 2026 in Boston, Massachusetts. (Photo by Andy Kuno/San Francisco Giants/Getty Images) | Getty Images It’s doubleheader time! I’m not sure if that’s the good news or the bad news, but it’s the news. The San Francisco Giants and Arizona Diamondbacks are playing twice today, not to make up for a lost game but so they can have a much-needed day off on Sunday.Taking the mound for the Giants is left-hander Matt Wilkinson, who makes his return after being optioned earlier in the week (Wilkinson is able to skirt the 10-day post-optioning minimum because of the extra player allocated for the doubleheader). The aptly-nicknamed Tugboat has made two appearances this year in his debut season, and has allowed eight hits, no walks, and four runs in 5.2 innings, with two strikeouts. He has a 5.15 ERA and a 5.37 FIP in 10 AAA starts.For the Diamondbacks, it’s veteran right-hander Merrill Kelly. A 37-year old in his eighth season, Kelly has made 24 starts, and is 8-12 with a 5.35 ERA, a 5.69 FIP, and 88 strikeouts to 60 walks in 134.2 innings. In his last start, Kelly gave up three runs in 5.2 innings against the Chicago Cubs.Enjoy the baseball, everyone. And then stick around for more baseball!Join the conversation!Sign up for a user account and get:Fewer adsCreate community postsComment on articles, community postsRec comments, community postsNew, improved notifications system!LineupsGiantsDrew Gilbert — CFRafael Devers — 1BBryce Eldridge — DHJung Hoo Lee — RFTurner Hill — LFDrew Cavanaugh — CShay Whitcomb — 3BNate Furman — 2BChristian Koss — SSLHP. Matt WilkinsonDiamondbacksIldemaro Vargas — 2BCorbin Carroll — RFGabriel Moreno — CGeraldo Perdomo — SSNolan Arenado — DHTim Tawa — 1BJosé Fernández — 3BJordan Lawlar — LFRyan Waldschmidt — CFRHP. Merrill KellyGame #136Who: San Francisco Giants (55-80) vs. Arizona Diamondbacks (72-64)Where: Oracle Park, San Francisco, CaliforniaWhen: 1:05 p.m. PTRegional broadcast: NBC Sports Bay AreaNational broadcast: n/aRadio: KNBR 680 AM/104.5 FM, KSFN 1510 AM