When asked about it during his appearance Wednesday on WEEI sports radio in Boston, Valentine said he'd heard about the report but had not addressed it with Beckett yet and seemed undecided on how to handle it.
"I'm aware of the story being out there. ... No, I haven't gotten to Josh about that yet and I'm trying to sort out my feelings," he said. "Golf is as much a part of the pitching culture as a curve ball, I know that for sure."
Last Wednesday, the day before Beckett was reportedly spotted on the links, Valentine announced the right-hander would miss his start -- scheduled for Saturday -- with stiffness in his lat muscle.
Valentine told WEEI he wouldn't comment further until he received more information, but noted that Beckett hadn't been shut down with an injury but was merely missing a start due to the tightness.
"When we decided for Josh not to make his start, it wasn't because he was injured," Valentine said. "It was a precautionary situation because his his lat was a little tight."
But he indicated he wouldn't condone that his pitcher play a full round of golf if he's trying to rest.
"Again, I don't know the specifics of the situation," Valentine said. "I don't know if he was out at a charity match, just putting, or if he was whaling away and felt that might have loosened things up. I have no idea what the situation actually is, so it's hard for me to comment on it. ... If that was the case (that he played golf), I would say that was less than the best thing to do on that day off."
Beckett was not with the team in Kansas City on Wednesday to comment, having flown back to Boston in advance of his scheduled start Thursday at Fenway Park.