Diaz ended the day with three hits and is now batting .381 in 11 Cactus League games this spring for the Tribe.
On the spring, Corbin has amassed 17 strikeouts and just three walks in 18 1/3 innings, posting a 3.44 ERA in five starts. Against Cleveland, the left-hander was charged with two runs on four hits in five innings, ending with three strikeouts and no walks.
"I feel great. I feel ready to go," Corbin said. "If the next one was the regular season, I'd be ready."
• Corbin overcomes bad memory
Indians starter Josh Tomlin also delivered a solid five-inning performance in his march toward the Opening Day rotation. The righty scattered two hits and allowed two runs (one earned) against the D-backs, striking out six and issuing no walks in the outing.
"[He was] Tomlin-like. Pretty good," Indians manager Terry Francona said. "He threw the ball over the plate, and he didn't throw it over the middle. [He gave up] the solo homer, but he got through five innings, gave up two, and he looks like he's right where he needs to be."
Chris Herrmann launched a solo home run off Tomlin in the second and Arizona broke through for one more off the right-hander in the fifth. In that inning, Kristopher Negron reached on a throwing error by Tribe shortstop Michael Martinez and later came around to score on a sacrifice fly off the bat of Jeff Mathis.
Indians relievers Dan Otero and Boone Logan each logged a shutout inning in the tie.
D-backs Up Next: Taijuan Walker looks to continue his dominant spring when he faces the A's at 7:05 p.m. PT Monday at Hohokam Stadium. Walker owns a 2.08 ERA and 21 strikeouts in 13 innings in his first Spring Training with Arizona.
Indians Up Next: Left fielder Michael Brantley is scheduled to make his Cactus League debut Monday when the Indians host the Dodgers in a 4:05 p.m. ET contest at Goodyear Ballpark. Right-hander Trevor Bauer is slated to start and log six innings for Cleveland. A webcast of the game will be available on Indians.com.
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Jordan Bastian has covered the Indians for MLB.com since 2011, and previously covered the Blue Jays from 2006-10. Read his blog, Major League Bastian, follow him on Twitter @MLBastian and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.