I continue to work on the top starting pitcher keepers, but in the meantime let's take a look at some possible power threats that may be lurking on your free agent wire.
Using Yahoo owned percentages
Garrett Jones 55% - Jones has been up and down in the AVG department this season, but he has about as much raw power as anyone. He has five home runs in the last 30 days and could at least duplicate that number in September, if not more.
Mike Morse 1% - Morse hasn't been a full timer in Washington, but when he has played he has done serious damage in the power department. With nine home runs in 144 at-bats, Morse has a 16 AB/HR rate. He's still stuck in a platoon, but has been playing a lot of late, and is a fine deep option to use when he does get a start.
Bill Hall 8%- With eligibility at 2B, 3B and OF, Hall could be an extremely valuable asset down the stretch. He'll move around the field, spelling Pedroia when his foot comes up sore as well as see time in left against left-handed pitchers. He has shown big time power in the past and has eight home runs in the last 30 days.
Ryan Raburn 14% - Raburn has eligibility at 1B, 2B and OF and is hitting .262 with five home runs since the all-star break. The power, however, hadn't come on until lately. He hit 16 home runs in 261 at-bats last season and has a track record that shows 15-20 home run potential in a full season. Hitting third in front of Miguel Cabrera for the past two games would be a very nice trend to see continue for his value the rest of the way.
Jhonny Peralta 26%- Raburn's teammate has found some new life with a new team. Peralta is never going to hit for much AVG, but we've seen the 20 home run potential in the past.
Pedro Alvarez 24% - His struggles this season with hitting for AVG are understandable. Alvarez is a rookie and is seeing the best left-handed pitching he's likely ever faced on a consistent basis. However, the power potential is enormous. Alvarez has eight home runs in the last 30 days and has the potential for a strong finish in that department.
Pat Burrell 14%- San Francisco has served as the city of resurgence for Burrell's career. He has 12 home runs in 126 at-bats since joining the Giants and has hit .284 with seven home runs in the last 30 days.
Micah Hoffpauir 0%- Hoffpauir was sent down to triple-A just before the Derrek Lee trade, so he has to stay there ten days before he can be recalled. Once back up, he'll likely get the lion's share of at-bats in a platoon with Xavier Nady. Hoffpauir has hit 22 home runs in 417 at-bats at triple-A this season and has a ton of raw power.
Possible September call-ups
Mark Trumbo NA - When Kendry Morales went down for the year, Trumbo's name was tossed about as a possible replacement. The Angels decided not to go that route, but Trumbo just continues to hit at triple-A to a line of .289/.357/.551 with 29 home runs. However, the Pacific Coast League is very hitter friendly and Salt Lake is one of the better hitting environments around. Many a prospect has hit for both AVG and power there only to struggle at the big league level (Brandon Wood, Sean Rodriguez, etc...). However, if Trumbo actually sees playing time in September, he'd be worth a flier in AL-only formats.
Lonnie Chisenhall NA - The Indians have nothing left to play for this season (Pride?), so there is a chance that some young prospects see at-bats in September. Lonnie Chisenhall is one of those prospects that could make an impact. Chisenhall is hitting .272/.342/.445 with 15 home runs in 389 at-bats at double-A this season. The numbers may not look overly impressive, but Chisenhall doesn't turn 22 until October and has perhaps the sweetest swing in the system. He may be auditioning for the starting third base job next season.