September 20 major league debuts in a Minnesota Twins uniform.
Mike Ryan (OF) – September 20, 2002 – Drafted by the Minnesota Twins in the 5th round of the 1996 MLB June Amateur Draft. Was in the starting line-up at Comiskey Park II hitting lead-off and playing left field and went o for 4 at the plate in a Twins 10-2 loss. See real story about the Mike Ryan debut.
Gary Gaetti (3B) – September 20, 1981 – Drafted by the Minnesota Twins in the 1st round (11th pick) of the 1979 amateur draft (June Secondary). Signed June 21, 1979. Debut took place at Arlington Stadium hitting 7th and playing third base. In his first big league at bat Gaetti hit a two-run home run off Rangers pitcher Charlie Hough. For the day Gaetti was 1 for 3 with a run scored and 2 RBI.
Buzz Stephen (P) – September 20, 1968 – Drafted by the Minnesota Twins in the 1st round (6th pick) of the 1966 amateur draft (June Secondary). Twins starter at Met Stadium in a 7-1 loss to the Oakland A’s. Stephen pitched 6.1 innings and allowed 5 runs (4 earned) on 8 hits and 5 walks while fanning just one and his effort earned him the loss. Buzz also had an error and a wild pitch but on the plus side he did pick-off Bert Campaneris.
Jim Roland (P) – September 20, 1962 – Signed as an amateur free agent in 1961, Debuted at Met Stadium in relief and tossed 2 innings of scoreless relief allowing just one hit and striking out one along the way. Unfortunately the Twins came up short and lost 5-1 to the Tigers.
You can check out other Major League Debuts as Twins that I have done by going here.