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These are the players who have been forces to reckon with in May, and there are more than you might think:
Domonic Brown (A): Brown was as close to an A+ as they come, but his batting average just wasn't enough to push him over the top. Last week's NL Player of the Week, Brown has been hitting the cover off the ball in May, batting .278 with an .866 OPS. His eight home runs and 19 RBI this month lead all Phillies hitters and he's also got four doubles, two steals and a triple. A nice May by Brown indeed.
Justin De Fratus (A-): De Fratus was quietly recalled from Triple-A in mid-May and has fazed his opposition so far. In seven relief outings, he's pitched to a 2.08 ERA and has also ended up with two wins. De Fratus' .188 BAA and 0.92 WHIP are just filthy. He's done a nice job back with the club.
Erik Kratz (A): While complaints rushed in about Kratz on all sides of the plate in April, the same can't be said in May. He's batted .306 with a .965 OPS and has slugged three home runs. Things couldn't be going much better for the Phillies' backup catcher right now, especially since he's seen more starting time than expected.
Cliff Lee (A): With a 4-1 record and 1.80 ERA reminiscent from his 2009 playoff run, Lee has been a monster in May. He's pitched a complete game shutout, has struck out 33 batters, and has turned in a 0.91 WHIP. Along with a .208 BAA, all that held Lee back from an A+ were his eight walks this month.
Jonathan Papelbon (A): Papelbon just doesn't get enough save opportunities, but when he's pitched in May, he's been almost unhittable. With a 0.00 ERA and 10 strikeouts in his 10 May appearances, Papelbon has been absolutely dominant.
Ben Revere (A): After a dismal April that saw him benched for about a week, Ben Revere quickly turned things around in May. He leads all Phillies regulars with a .348 average this month and has a respectable .788 OPS. Along with three doubles and four steals, it's been a nice May for the Phillies' center fielder