SCOTTSDALE, Ariz. — Landen Roupp will start the San Francisco Giants’ starting pitcher for their Cactus League opener on Saturday against , manager Bob Melvin announced on Thursday morning.

Roupp will likely throw two innings, depending on his pitch count. Melvin did not reveal which other pitchers or position players would make the hour-long drive to Surprise, but the roster will likely feature a healthy amount of younger players and prospects — a list that could include .

The 26-year-old right-hander is one of many pitchers in camp currently competing for the fifth spot in San Francisco’s rotation. The competition is currently — the former owning the edge over the latter — but the list of candidates in camp with major-league experience includes Roupp, Keaton Winn, Mason Black and Trevor McDonald.

Roupp pitched 23 games for the Giants last season after , making 19 relief appearances to four starts. Melvin said the team will build Roupp up as a starter for the time being.

Despite oscillating between Triple-A Sacramento and San Francisco, Roupp posted a 3.58 ERA and 3.42 FIP (fielding independent pitching) with 47 strikeouts over 50 1/3 innings. Roupp fared better as a reliever (3.41 ERA, 31 2/3 innings) than as a starter (3.86 ERA, 18 2/3 innings), the caveat being that four games is a sample size.