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Standing next to Hartline in position drills: One of two receivers in the NFL with 100 catches in three straight seasons (Brandon Marshall); one who did not drop a single ball the 73 times he was the intended receiver (Greg Camarillo); and someone whose 130 catches in his first two seasons are the most in Dolphins history to start a career (Davone Bess).

Yet when Tony Sparano chose a receiver to play opposite Marshall this training camp with the starting offense, he went with Hartline, the 2009 fourth-round pick out of Ohio State.

The reason? He gains more inches than Camarillo or Bess after the catch.

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