Ray Shero provided an update Monday on Sidney Crosby’s recovery from post-concussion symptoms, but the Penguins GM couldn’t say when his 24-year-old star center will be ready to rejoin the lineup.

Shero said Crosby has ramped up his offseason training, though he also acknowledged that Crosby has been dealing with lingering symptoms “off and on” throughout the summer.

The Penguins are set to open training camp in about a month; Crosby will have to be cleared by doctors before joining full-contact drills.

Shero’s update was in response to a tweet from Josh Rimer, a producer of the “NHL Home Ice” program on Sirius radio. Rimer tweeted on Sunday that three sources told him Crosby would not be ready to start the season.

“There are no dates,” Shero was quoted as saying Monday on USAToday.com. “When he is cleared to play, he is cleared to play. . . . We are thinking bigger picture here. I’ve always told Sid, ‘you will never be pressured to play or pressured to practice.’ ”

Crosby hasn’t played in a game since blows to the head in back-to-back games by Tampa Bay’s Victor Hedman and former Capital David Steckel in early January.