Oswaldo Arcia (OF-MIN). Arcia continued to wield a hot bat since his return from the DL, going 2 for 4 with 2 runs and his second HR of the season against the Yankees on Friday night. Arcia is now slashing .282/.300.564 in only 40 plate appearances in the majors this season. Arcia more than held his own in his MLB debut last year, despite never having played above AA, slashing .251/.304/.430 with 14 HR in 378 PAs. Arcia is unlikely to maintain his current BA, as his plate discipline is, to put it mildly, atrocious (22.5% K rate to only 2.5% BB rate), but the power is legitimate and Arcia could easily hit 15 HR from here on out (the number would probably be higher but for his home park), making him a worthy add in deeper leagues. He gets two more games to shoot for Yankee Stadium's short RF porch, so those in leagues that permit daily moves and daily gamers should take note.
Danny Santana (SS/OF-MIN). Santana appears to be the choice for regular time as the Twins' CF, at least for the short term. He went one for two with a double and an SB before having to leave the game with a lacerated eyelid. Santana is now hitting .375/.432/.475 with 2 SB in his limited time with the Twins this year. Given Aaron Hicks' continued underperfomance, Santana could carve out a permanent spot as the Twins leadoff hitter (which would also permit the Twins to use Brian Dozier in a run-producing spot). Santana has no power and has serious plate discipline issues (31.1 K% so far in the majors and a 26.7 K% in AAA prior to his callup), but he does have serious speed (30 SBs last year in AA). He is even more intriguing because he likely has SS eligibility in most fantasy leagues. He is a must-add in AL only formats and should be a consideration even in mixed formats for those in need of speed, since his SS eligibility makes his lack of power easier to swallow. Although he did need stitches for his eyelid, I would not expect Santana to miss more than a game or two.
Lorenzo Cain (OF-KC). Cain continued to be one of the few bright spots for the Royals' offense, going 3 for 4 with his 2nd HR of the season and 4 RBI. Cain is now slashing .339/.388/.441 on the season, with 6 SBs to go with the 2 HR. Cain is unlikely to maintain the lofty BA, since it is being supported by a .413 BABIP, but his regression may not be as severe as would ordinarily be the case, as he sports a lifetime .336 BABIP. As always, the primary issue with Cain is health, as he already has one DL stint to his credit this year. If he could somehow stay on the field, he could be good for double digit HR and steals, with a BA that at least would not be detrimental to a fantasy team. Cain is probably available in most shallow leagues and should be considered as an add by those in need of OF help.
Lonnie Chisenhall (3B-CLE). Chisenhall continued his hot hitting Friday night, going 2 for 4 with 2 RBI against the Rockies. Chisenhall appears to finally be living up to his prospect hype, as Friday's performance improved his season line to .362/.418/.528, with 2 HR and 12 RBI. The BA will obviously drop, as Chisenhall's BABIP currently sits at .427, although regression may not be as severe as one would think, as Chisenhall is making solid contact with the ball with an elite 30.8% LD rate. That is higher than his career rate, so that will probably drop off. Chisenhall is probably not a .300 hitter, but he is certainly a better hitter than his .225 BA in 2013 was indicate (he hit in extreme bad luck, as evidenced by his .243 BABIP). Chisenhall's BA will come down, but his power numbers should improve, as his current HR/FB rate of 5.0% is half his career rate. I am recommending Chisenhall as an add in all but the shallowest of formats, particularly in light of the fact that he is expected to see some time at 1B with Swisher and Santana on the DL. He currently has 5 GP at 1B, putting him only 5 games away from eligibility there in most leagues, and this additional eligibility only enhances his fantasy value.
Rubby de la Rosa (SP-BOS). De la Rosa is getting the call to make the start for the Red Sox against the Rays on Saturday night. De la Rosa is taking Clay Buchholz' spot in the rotation, and the Red Sox have not announced whether tonight's start is a one-shot deal or if De la Rosa will be considered for additional starts. De la Rosa makes for an intriguing streaming option, as he has posted solid numbers in 10 starts at AAA Pawtucket (3.04 ERA, 2.74 FIP, 8.78 K/9), and the Rays aren't hitting against anyone right now. Long term, I would recommend taking a wait and see attitude with de la Rosa (particularly given the uncertainty as to whether he will get any more starts), as his career MLB numbers to this point are decidedly mediocre (4.21 ERA and FIP and 8.17 k/9), but I would strongly consider him for tonight's start as a streamer in standard leagues and in daily leagues (assuming he is available).