Oklahoma Sooners: Alvin Kamara
Hackenberg, Olsen earn UA Game starts
Black Team offense
Quarterback: Christian Hackenberg (Penn State)Running back: Alvin Kamara
UNDER ARMOUR GAME 2013
Keep up with live blog posts, video, breaking news and more all week from the Under Armour All-America Game in Florida. Blog 
• Top 2 recruits Nkemdiche, Lawson 
• Fact or Fiction: Liner, Foster, more
• Spread offenses reduce RBs' spotlight
• Who has impressed the most?
Tight end: O.J. Howard (Alabama)
Offensive tackle: Darius James (Texas), Denver Kirkland
Offensive guard: Grant Hill (Alabama), Joas Aguilar (Texas A&M)
Center: Hunter Bivin (Notre Dame)
Captains: Kelvin Taylor, Hunter Bivin, Robert Nkemdiche, Ben Boulware
Black Team defense
Defensive end: Robert Nkemdiche, Elijah DanielDefensive tackle: Greg Gilgmore (LSU), Kennedy Tulimasealii (Hawaii)
Inside linebacker: Ben Boulware (Clemson)
Outside linebacker: Alex Anzalone (Notre Dame), Matthew Thomas
Safety: Keanu Neal (Florida), Leon McQuay III
Cornerback: Vernon Hargreaves III (Florida), Tarean Folston (Notre Dame)
Black Team special teams
Long snapper: Tyler Kluver (Iowa)Kicker/punter: Sean Covington (UCLA)
White Team offense
Quarterback: Kevin Olsen (Miami)Running back: Keith Ford (Oklahoma)
Receiver: Laquon Treadwell, Ryan Green (Florida State), Jalin Marshall (Ohio State)
Tight end: Hunter Henry (Arkansas)
Offensive tackle: Derwin Gray (Maryland), Dorian Johnson (Pittsburgh)
Offensive guard: Patrick Kugler (Michigan), David Dawson (Michigan)
Center: Scott Quessenberry (UCLA)
White Team defense
Defensive end: Carl Lawson (Auburn), Joey Bosa (Ohio State)Defensive tackle: Henry Poggi (Michigan), Kelsey Griffin (South Carolina)
Inside linebacker: Reuben Foster, Yannick Ngakoue
Outside linebacker: Trey Johnson
Safety: Max Redfield, Antonio Conner
Cornerback: Gareon Conley (Ohio State), Shaq Wiggins (Georgia)
White Team special teams
Long snapper: Brendan TurelliKicker: Ryan Santoso (Minnesota)
Punter: Shane Tripucka
Captains: Ryan Green, Hunter Henry, Patrick Kugler, Reuben Foster
#BlueChipBattles: Nov. 16
ESPN.comUncommitted 2013 running backs Alvin Kamara and Derrick Green.ESPN 100 running backs Alvin Kamara and Derrick Green can score from anywhere on the field thanks to their breakaway speed, an attribute that makes them very attractive recruits to the Oregon Ducks. Oregon's pursuit of the duo headlines this week’s #BlueChipBattles.
Click through for our list to rank the top 10 recruiting battles
.ABOUT SOONER NATION
Jake Trotter
Jake Trotter joined ESPN.com in 2011 after four years with The (Oklahoma City) Oklahoman, covering OU and Big 12 football. He's a graduate of Washington and Lee (Va.) University and lives in Oklahoma City with his wife. Email him at trotterjake@gmail.com.
Brandon Chatmon
Brandon Chatmon joined ESPN.com in 2011 after spending eight years with The Oklahoman, covering Oklahoma State University, high schools and recruiting. Chatmon lives in Norman, Okla. Email him at bchatmonespn@gmail.com.
Bob Przybylo
Bob Przybylo joined ESPN.com in 2011 after spending four years with The Oklahoman, covering high schools and recruiting. Przybylo lives in Oklahoma City. Email him at bprzybyloespn@gmail.com.