The 25-year-old Avelino – whom San Francisco acquired from the Yankees in a 2018 trade centering on Andrew McCutchen – had brief stints with the Giants in each of the previous two seasons, during which he totaled five hits (all singles) in 19 plate appearances. Avelino has garnered far more experience in Triple-A, though he also hasn’t been a world-beater there, evidenced by his .266/.302/.402 slash with 15 home runs across 873 trips to the plate.
In other Giants news, manager Gabe Kapler announced to Alex Pavlovic of NBC Sports Bay Area and other reporters that the team could activate left-hander Drew Smyly from the injured list on Wednesday or Thursday. Smyly, whom the Giants signed to a $4MM guarantee in the offseason, has only made three appearances this year and hasn’t pitched since Aug. 1 on account of a strained left index finger. Before that, the 31-year-old threw 8 1/3 innings of three-run ball with 11 strikeouts and four walks, and he averaged a career-best 93.4 mph on his fastball. Two of Smyly’s three outings this season have come as a starter, but it’s unclear whether he’ll return to the playoff-contending Giants’ rotation when he comes back.