The Twins are scouting Heath Bell extensively for a possible trade, according to Bob Nightengale of USA Today (via Twitter). Closer Joe Nathan may have to undergo Tommy John surgery, so the Twins are looking at possible replacements, including Bell and Blue Jays reliever Jason Frasor.
The Twins won't necessarily have to make a trade at all, though. Nathan will throw Saturday, Sunday or Monday and the Twins will have a clearer sense of his ability to pitch with a torn ulnar collateral ligament after his bullpen session.
Bell led the National League with 42 saves last year. He posted 10.2 K/9 and 3.1 BB/9 in 69.2 innings. The 32-year-old righty makes $4MM this year and won't be a free agent until after 2011.