Keith Law's top free agents, Nos. 31-50

Heath Bell is enticing, but will his flat fastball play outside of spacious Petco Park? AP Photo/Lenny Ignelzi

The third tier of the top 50 is where teams will look to both fill out a bullpen and try to catch lightning in a bottle with a cheap veteran bat. Some inexpensive options could include Joe Nathan and Rafael Furcal.

There also are a few intriguing names who spent last season in Japan. Most of them are unfamiliar, but one, Matt Murton, could be trying to break back into the majors after two seasons in NPB.

Law's complete top 50: 1-10Insider | 11-30Insider | 31-50Insider