PHOENIX -- Right-hander Taijuan Walker will make his first appearance on a Major League mound since April 14, 2018 when he gets the start in the season finale Sunday against the Padres at Chase Field.

Walker is slated to throw one inning. Lefty Alex Young, whose normal day to start is Sunday, is scheduled to come in after him.

Walker suffered a torn ulnar collateral ligament April 14, 2018 at Dodger Stadium, and the resulting Tommy John surgery kept him sidelined for the rest of that season and the first two months of 2019.

It appeared Walker was on track to rejoining the rotation earlier this year before he experienced some discomfort in his shoulder in mid-May.

Further testing showed that Walker had suffered a capsule sprain in his shoulder, and he was given a platelet-rich plasma injection. That prevented him from throwing for six weeks. After that, he had to go through the process of building his arm strength up.

Appearing in one game this season, even if it’s just for an inning, is important to Walker, who has said he wants to show that he is healthy heading into the offseason.

Minor League awards

Catcher Daulton Varsho and right-hander Josh Green were named the D-backs’ organizational Player and Pitcher of the Year.

Varsho, who was selected 68th overall in 2017, is ranked as Arizona’s fifth-best prospect, per MLB Pipeline. Green, taken in the 14th round in 2018, checks in at 21.

Varsho, 23, hit .301/.378/.520 for Double-A Jackson and showed his versatility late in the season by playing some games in center field. He participated in the 2019 All-Star Futures Game this year.

“It kind of shocked me,” Varsho said of the award. “There’s a lot of great players in our system, so it was an honor to be able to get the award. Just being myself all year and just trying to control what I can control. I can’t thank the Diamondbacks enough.”

Green, 24, combined to go 11-5 with a 2.71 ERA with a 1.20 WHIP in 22 starts for Class A Advanced Visalia and Jackson.

The win total led all D-backs Minor Leaguers, and his ERA was second only to Levi Kelly among pitchers with a minimum of 100 innings.

"Humbling,” Green said. “That's it. Very, very, very grateful for the opportunity the D-Backs are giving me. … It's a great honor, didn't expect it at all."