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Now that we're a third of the way through May, you should have a pretty good idea of your fantasy team's strengths and weaknesses. Even if you're sitting in first place, it's always important to monitor the waiver wire to find players who can help improve your team.

With that in mind, here are four players you should consider picking up off the waiver wire for Week 7 of the fantasy baseball season.

4. Michael Chavis, 2B/3B, Boston Red Sox

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Michael Chavis is a top prospect, and he's been productive since joining the Boston Red Sox. The slugger is hitting .282 this season and already has three home runs in the month of May. With eligibility at both second and third base, a decent amount of pop and the potential to get even better, Chavis could be a solid addition.

3. Lucas Giolito, SP, Chicago White Sox

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Lucas Giolito has been shaky overall this season, but he was once viewed as one of the best prospects in the MLB. Although, the Chicago White Sox's starter has been dominant over his past two outings, surrendering one earned run through 14 1/3 innings and racking up 16 Ks. Giolito still has electric stuff and could be a fantastic source of strikeouts this season.

2. Anthony DeSclafani, SP, Cincinnati Reds

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Anthony DeSclafani had been really effective this season before getting lit up by the San Francisco Giants on May 11. Still, the Cincinnati Reds' starter has struck out 46 hitters through 41 innings pitched. If you need strikeouts, DeSclafani is worth a speculative add.

1. James McCann, C, Chicago White Sox

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James McCann has been on a tear this season, hitting .382 with four home runs and 11 RBI thus far. He's been even better in the month of May, batting .414 with two home runs and six RBI through eight games played. While he might regress to the mean soon, pick him up now and enjoy the ride, as you won't find many other catchers hitting this well.

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Max Staley is not a FanDuel employee. In addition to providing DFS gameplay advice, Max Staley also participates in DFS contests on FanDuel using his personal account, username mstaley1212. While the strategies and player selections recommended in his articles are his personal views, he may deploy different strategies and player selections when entering contests with his personal account. The views expressed in their articles are the author's alone and do not necessarily reflect the views of FanDuel.