The Mets appeared to lose two third basemen on Thursday.

After announcing that David Wright underwent surgery on the herniated disc in his neck — something that could potentially cost him the season and even his career — the Mets were dealt another setback at the position when backup Wilmer Flores was plunked on the left hand by Juan Nicasio’s 93-mph fastball in the second inning of their game against the Pirates.

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X-rays were negative and the Mets said he suffered a contusion.

Flores was visited by a trainer but stayed in the game to run the bases. He was replaced in the bottom of the third by pinch hitter Kelly Johnson, who stayed in to play third base.

Losing Flores, who hit a two-run home run on Wednesday and had four RBIs, would put the Mets in a tight spot offensively, since the infielder has been one of their most consistent bats in June. He’s third in the National League with a .375 average this month (15-for-40) with three doubles and seven RBIs.