DENVER -- First baseman Brandon Belt, who has struggled since coming off the disabled list, was not in the Giants' lineup Monday due to right knee soreness.
Chase d'Arnaud made his first career start at first base and third appearance at the position where his previous experience totaled three innings -- two this year on July 29 and one in 2017 for the Padres.
"It's flared up on him occasionally, and yesterday it was bothering him to the point where we almost had to pull him out there in the seventh inning," manager Bruce Bochy said. "But he felt like he could keep going. He needs a day [off] today."
Belt missed 17 games with a hyperextended right knee and was reinstated from the 10-day disabled list Aug. 14. Since coming off the DL, Belt is 10-for-61 (.164) with two hits in his past 21 at-bats. He has gone 26 plate appearances without an extra-base hit at Coors Field this season.
Worth noting
• Outfielder Steven Duggar will undergo surgery Tuesday to repair a labrum tear in his left (non-throwing) shoulder. He suffered the injury last Tuesday. Dr. Gary Waslewski will perform the operation in the Phoenix area.
• The Giants recalled right-handed pitchers Casey Kelly and Pierce Johnson and left-handed pitcher Steven Okert. Kelly is 0-2 with a 2.16 ERA in four games (two starts) for the Giants this season. Recalled for the fifth time this season, Johnson is 3-2 with a 5.72 ERA in 31 games for the Giants. Okert will be making his 2018 debut for the Giants. He was recalled on April 10 but did not appear in a game.
Bochy did not rule out the possibility of recalling a position player. He said he spoke Monday morning with general manager Bobby Evans, "but right now, this is what we have."
• Shortstop Brandon Crawford was back in the lineup. He missed the past three games due to left knee soreness.