Yoenis Cespedes may have been feeling a little lonely in Port St. Lucie.

The Mets outfielder, who is rehabbing from surgery to remove calcifications from both heels, spent the past two days working out with teammates at Citi Field and is expected to remain through the homestand.

Since Cespedes’ last visit with the club in the first week of April in Miami, he has added biking to his workouts, according to manager Mickey Callaway. Cespedes, who declined requests to be interviewed through a team spokesman, has also been taking swings off a tee and throwing from the outfield, but hasn’t been cleared to run.

“He looks great, and it is good for the guys to see him,” Callaway said before the Mets’ 4-3, 10-inning win over the Reds. “One thing we were talking about this afternoon: When Cespedes gets back and we put this lineup together, it’s going to be really special. We have the capability already of scoring runs, and then you add another bat like that in our lineup and what we already have, and then you are really talking about something.”

If the Mets have a timeline on Cespedes’ potential return, they aren’t saying. Indications last year were that he would miss the first half of this season, at least.

“That’s still probably hard to speculate,” Callaway said about Cespedes’ return. “Just understand that he has a process that he has to go through every single day to do his best to get back and try to help us.”

Jacob deGrom will be trying to snap a string of three straight subpar performances when he faces the Reds on Wednesday. The right-hander has pitched to a 12.38 ERA in his two home starts this season.

DeGrom and pitching coach Dave Eiland hope an adjustment to the pitcher’s mechanics will reap results. Following a flogging by the Brewers on Friday, in which he allowed five earned runs over four innings, deGrom said he felt as if he was trying to throw a shot put at times instead of having a whip-like motion in his delivery.

Robinson Cano (hand) was absent from the lineup for a second straight game.