The Mets have placed Taylor Buchholz on the disabled list with right shoulder fatigue to make room for Reyes.
Reyes is currently batting .335 with one home run and 17 RBIs. The 27-year-old leads the majors in hits (76), triples (eight) and stolen bases (19). He is 14-for-27 (.519) at the plate in his past six games.
Mets manager Terry Collins made it clear that he will welcome Reyes back with open arms.
"You miss (Reyes') energy," Collins said before the Mets' 9-3 loss to the Pittsburgh Pirates on Wednesday. "You miss the impact he makes on the team offensively and defensively."
Buchholz, a right-handed reliever, said he's pitched through pain for most of the season but it became more difficult to do so in the past week. He will huddle with the coaching staff in the coming days to put a rehabilitation plan together. He said there are no plans to have an MRI at this point.
"It's been getting worse and worse and we decided to give it a rest," Buchholz said.
Buchholz is 1-1 with a 3.12 ERA in 23 games pitched. He has allowed 20 hits and nine earned runs in 23 2/3 innings. The move to put hi on the DL is retroactive to May 30.
Ian Begley is a regular contributor to ESPNNewYork.com.