Workhorse RBs were in hot pursuit in the first two rounds of the Roto Arcade fantasy football mock. Today, second tiered wideouts are in demand. What additional surprises popped up in Rounds 3-4? What team do you think is off to the best start? Check out our selections below.

ICYMI: ROUNDS 1-2

ROUND 3

Antonio Brown, WR, Pit — Owners in PPR leagues scrawled love poems about him last year as he reeled in 110 catches for 1,498 yards and eight TDs. He turns just 26 this July. Dreamy. (EVANS)

Randall Cobb, WR, GB — If not for a leg fracture that cost him 10 games, Cobb would've easily finished in the 80-1100-10 range last fall. Healthy and hungry, he's a sure-fire WR1. (EVANS)

Ryan Mathews, RB, SD — Before you hate on the old familiar name, go check his 2013 haul again. Accept one other reality: we all have to take on risk at the running back position. (PIANOWSKI)

Vincent Jackson, WR, TB — Height, deep speed, competitiveness, he's got it all. Consistent stat grabber, too. And things in Tampa can't be as crazy this year, with Greg Schiano finally gone. (PIANOWSKI)

DeMarco Murray, RB, DAL — No one ever gets excited to draft Murray (or at least they haven't lately), but the man averaged 5.2 YPC last season and broke the plane 10 times in 14 games. (BEHRENS)

Keenan Allen, WR, SD — This kid is a star, a top-10 receiver in my ranks. He topped the 100-yard mark five times as a rookie, he visited the end zone eight times, then beasted in the postseason. (BEHRENS)

Alfred Morris, RB, WAS — You worry a little bit about head coach Jay Gruden's love of the passing game, but Morris should still see 275-plus touches as the clear lead RB in WAS. (FUNSTON)

Bishop Sankey, RB, TEN — Sankey lands in an ideal place with a great offensive line in front of him and less than daunting competition in Shonn Greene. (FUNSTON)

C.J. Spiller, RB, BUF — He was no doubt a bust last year but played through a high-ankle sprain most of the season. He owns a career 5.1 YPC mark, and Buffalo's offense should be improved in 2014. Fred Jackson will be 33.5 years old, which is beyond ancient for an RB. (DEL DON)

Julius Thomas, TE, DEN — He scored 12 touchdowns over 14 games last year during his first season as a starter. The Broncos lost Eric Decker, who had the third-most red-zone targets (23) and the second-most looks inside the five (eight) among all WRs, which should benefit Thomas. (DEL DON)

Ben Tate, RB, CLE — Desperation time at running back. But it was desperate at the end of the first round, too, so what's the difference? Not too worried about Terrance West. (SALFINO)

Shane Vereen, RB, NE — Will be excellent in PPR as he's the only mismatch player in New England with Gronk very questionable. Could siphon off half the carries, too. (SALFINO)

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ROUND 4

Reggie Bush, RB, DET – Thinking Bush will be Darren Sproles-ish with about 100 more carries this year, which is pretty good. There will be plenty of volume in Detroit given its secondary woes. (SALFINO)

Michael Crabtree, WR, SF— You worry about Crabtree being crowded out in a low-volume passing game, but Kaepernick seems to heavily favor him. (SALFINO)

Pierre Garcon, WR, WAS — The DeSean Jackson addition hurts his value some, but Garcon is coming off a season in which he recorded 113 catches for 1,346 yards, and RG3 should be much healthier in 2014. Garcon's 182 targets led the NFL. The low TD total seems like a fluke. (DEL DON)

Andre Johnson, WR, HOU — I debated Larry Fitzgerald and Roddy White here but settled on volume again (Johnson's 181 targets were second most last year). He's averaged 110.5 receptions and 1,503 yards over the past two seasons. Maybe the new Houston regime will throw to him more in the RZ. (DEL DON)

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