Anonymous GM: 'Everyone's closer is available' on trade market

There could be a supply and demand issue this offseason in regards to moving high-leverage relievers.

Trade winds are beginning to swirl as the GM meetings commence in Boca Raton, Fla., and there seems to be a trend in preliminary trade discussions.

"Everyone's closer is available," a GM told CBS Sports' Jon Heyman. "People, especially the young GMs, have no fear of trading their closer."

One closer generating a significant amount of buzz on the market is Pittsburgh Pirates right-hander Mark Melancon. According to two rival GMs, the top closer in the National League is "out there for the taking."

Melancon, 30, recorded a league-leading 51 saves, blowing only two chances all season. He worked to a 2.23 ERA and 0.93 WHIP while striking out 62 batters over 76 2/3 innings of work.

Other high-leverage arms being heavily discussed include Texas Rangers righty Shawn Tolleson, Philadelphia Phillies fireballer Ken Giles, and Washington Nationals back-enders Jonathan Papelbon and Drew Storen.