FLORHAM PARK, N.J. - Jarvis Harrison's words were clipped and delivered without emotion Saturday after he was taken in the fifth round of the NFL Draft by the Jets.

But after a few minutes, his seeming lack of interest in talking to the media was explained: His mother, Ramona, was trying to reach him.

"She's calling me right now, that's why I'm trying to hurry up," he said on a conference call shortly after the Jets selected him 152nd overall, using the pick they acquired from the Texans Friday night.

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The Texas A&M guard (6-4, 330) is a high-risk, high-reward player -- one who has tremendous upside but a lot of question marks.

For all of his strength and athletic ability, there are concerns about Harrison's drive and work habits. His weight has fluctuated throughout his career, plus he's undergone two shoulder surgeries in the past three years. Harrison said he had a torn labrum in his right shoulder repaired in January 2012 and then had the left labrum repaired in January 2014. But he said he hasn't had shoulder issues since.

Harrison also downplayed the critiques of his motor.

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"Everybody has opinions. That stuff doesn't get to me," said the native of Navasota, Texas, which is about 70 miles northwest of Houston. "I don't listen to stuff like that. It doesn't bother me what people think."

With the 223rd overall pick in the seventh round, the Jets selected nose tackle Deon Simon of Northwestern State (La.). Simon, who turns 25 in July, is coming off a knee injury.

"Going into college, it's been a real struggle of a journey," said Simon, who suffered a severe right leg injury in 2008 after committing to Central Florida and later failed to qualify academically. He spent time at a prep school before he was ruled eligible to play for the Demons in 2011. "But, the type of guy I am, I overcame a lot. I kept a good mind-set and I am finally getting my opportunity to play at the next level."

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General manager Mike Maccagnan used the 224th overall pick -- which he received from the Bears after agreeing to send a fifth-round selection to Chicago in exchange for Brandon Marshall trade -- to acquire Rams running back Zac Stacy. Stacy reportedly requested a trade on Friday after the Rams drafted Todd Gurley in the first round. Stacy rushed for 973 yards and seven touchdowns as a rookie but was buried on the depth chart in 2014. He'll join Chris Ivory, Bilal Powell and Stevan Ridley.