According to John Harper of the Daily News, a source says the Mets turned down an offer that would have sent Daniel Murphy to the San Diego Padres for right-handed reliever Luke Gregerson.

Major League sources say his name has been already out there in trade discussions. One source says the Mets have already rejected an offer from the Padres of reliever Luke Gregerson for Murphy.

That alone is intriguing, considering that Gregerson, a 28-year-old righthander, seems to fit the bill as a solid reliever who could upgrade the Mets’ bullpen immediately and be under their contractual control for the next two seasons as well.

Going into Tuesday night’s action, Gregerson was 2-0 with a 3.12 ERA, and has had streaks in the last couple of seasons where he has been dominant. This season he had a few rough outings in May that ballooned his ERA to 4.57, but since May 30 he has allowed only four runs in 24 appearances.

Murphy is having another Murphy-like season. Good batting average, lots of doubles, and little home run power. He’s batting .305 with three homers and 30 doubles in the 95 games this season.

This signals that either Murphy will be back at second base in 2013 or that the front office was one of those club’s whose prices were “too pricey”. A comment Alderson made two weeks ago when he asserted that the Mets were “certainly buyers.”