While the baseball world pauses for the All-Star break, here are a dozen players who fantasy owners should be looking to cash in for maximum value …
Jason Bartlett – Bartlett is batting .347 compared to his career mark of .286 and has already homered eight times in 68 games after never going deep even five times in a season previously, so he's an easy sell-high pick. His speed will give him plenty of value even if his bat returns to career norms, so there's no need to part with Bartlett unless the offer is strong and someone is willing to overpay.
Nick Blackburn – Aside from great control there's little in Blackburn's track record to suggest that he'll keep up an ERA in the low 3.00s. He entered this year with a 4.26 career mark, has the single worst strikeout rate in the league at 3.9 per nine innings, and is far from an extreme ground-ball pitcher. Blackburn is a solid starter, but he's just not this good and many people seem sold on him right now.
Ryan Franklin – Franklin has the absurd facial hair, sub-1.00 ERA, and 21 saves of a shutout closer, but his low-90s fastball and modest 7.1 strikeouts per nine innings combined with an unsustainably amazing .207 batting average on balls in play signal that he's not long for the unhittable category. If you can convince another owner to value him like a truly elite closer, pounce on the offer.
J.A. Happ – Happ has gone from undervalued to overvalued in the span of about two months, which is what happens when a rookie goes 6-0 with a 2.90 ERA for the defending champs. In reality Happ is a 26-year-old who had a 4.20 ERA with strong strikeout rates and poor control at Triple-A. He'll keep missing bats and should remain a solid starter, but don't expect his ERA to stay under 4.00.
Adam Kennedy – Kennedy came out of nowhere to bat .390 with a 1.084 OPS in May, but the 33-year-old career .276/.329/.392 hitter has batted .237/.291/.349 since. He's already fallen back down to earth, but there's still more to come and it makes sense to cash him in before the inflated value completely dries up. He's perhaps the least risky sell-high player on this list, so just start shopping him.
Raul Ibanez – Setting aside his quarreling with a blogger and recent return from a groin injury, Ibanez is having a career-year at the age of 37 and those tend not to last. He never managed even a .900 OPS prior to this season, yet is currently sporting a 1.015 OPS that ranks third in the NL behind Albert Pujols and Prince Fielder. Ibanez is a plenty good hitter, but he's just not an MVP-caliber player.
Brandon Inge – Getting shut out in the Home Run Derby may be a sign of things to come for Inge in the second half. He's always had 20-homer power, but going deep 21 times in 86 games is something entirely different and maintaining a .268 batting average will also be difficult given his .239 career mark. Catcher eligibility gives Inge plenty of value no matter what, but a .240-10-35 second half is likely.
Jason Marquis – He came into this season with a 79-70 record and 4.55 ERA, so naturally Marquis has 11 wins and a 3.65 ERA in his first year calling Coors Field home. Marquis has legitimately improved by supplementing his usual horrendous strikeout rate and poor control by inducing significantly more grounders, so he's not doomed for a 6.00 post-break ERA, but there's no first-half repeat coming.
Joe Mauer – You'll never find a bigger Mauer fan than Yours Truly, but the power that he displayed upon coming off the disabled list in May was ultimately a fluke and while Mauer without power is still one of the game's elite all-around players in real life his fantasy value will never be more inflated. If shouldn't shock anyone if he wins a third batting title, but he has just three homers in the past 35 games.
Kevin Millwood – After posting ERAs of 4.52, 5.16, and 5.07 during his first three Rangers seasons Millwood is currently sporting a 3.46 mark that was under 3.00 as recently as last week. Nothing has changed within the nuts and bolts of his performance, as Millwood's strikeout, walk, and ground-ball rates are all sub par while his ball-in-play batting average is 35 points better than his career mark.
Scott Rolen – He's stayed healthy enough to play in 77 of 90 games while hitting .320 and one or both of those things figures to change in the second half. Rolen has never hit even .300 before and 2003 was the last time he missed fewer than 20 games in a season. Unless he rediscovers the power stroke that appears to have vanished after 2006, Rolen will disappoint a lot of owners down the stretch.
Ben Zobrist – Zobrist finally figured out big-league pitching and added power to his resume last year, so what he's done this season isn't quite as shocking as it first appears. With that said, whenever a 28-year-old career .222/.279/.370 hitter who slugged just 23 homers in 364 games in the minors goes off for 17 homers and a 1.012 OPS in the first half … well, you can feel pretty safe selling high.