Ed McCaffrey's son among Raiders' 13 undrafted free-agent signings

Receiver Max McCaffrey, the son of former Broncos WR Ed McCaffrey, played his college ball at Duke. Cyrus McCrimmon/ The Denver Post

ALAMEDA, Calif. -- The Oakland Raiders announced the signing of 13 undrafted free agents on Tuesday. Here's a closer look at each player:

K.J. Brent, WR, Wake Forest: At 6-foot-4, 190 pounds, a possession receiver who spent only one season with the Demon Deacons as a graduate transfer, catching 42 passes for 583 yards, after three seasons at South Carolina. Caught 56 passes for 735 yards and two touchdowns in 49 career college games.

Ross Burbank, C, Virginia: Played both center and guard for the Cavaliers, starting 27 of his 45 career games over four years, and was all-ACC honorable mention.

James Cowser, LB/DE, Southern Utah: The 6-foot-4, 260-pounder set an NCAA FCS record with 43.5 career sacks over four years with the Thunderbirds. The FCS ADA and Big Sky defensive player of the year as a senior.

Kenneth Durden, CB, Youngstown State: A relatively big cornerback at 6-foot, 180 pounds, Durden spent two years with the Penguins after three years at South Florida. As a senior last year he had one interception and five passes defensed with 22 tackles (17 solo) and returned seven kickoffs for 97 yards.

Antonio Hamilton, CB, South Carolina State: In three seasons with the Bulldogs, had four interceptions and nine passes defensed over 33 games. Might have to make his mark with Raiders as return specialist, though, as he had 33 kickoff returns for 818 yards and two touchdowns and 23 punt returns for 498 yards and two TDs.

Johnny Holton, WR, Cincinnati: Caught 46 passes for 892 yards and 10 touchdowns in 21 games over two seasons for the Bearcats after transferring from the College of DuPage in Illinois. The 6-foot-2, 190-pounder also returned 45 kickoffs for 942 yards.

Drew Iddings, DL, South Dakota: In four seasons with the Coyotes, with 46 games and 35 starts, had eight sacks and 149 tackles, including two sacks and a fumble recovery as a senior while the 6-foot-6, 290-pounder also blocked a field-goal attempt.

Darius Latham, DT, Indiana: Had 7.5 career sacks, two fumble recoveries an interception and seven passes defensed in 35 games with the Hoosiers, 20 starts. The 6-foot-5, 305-pounder was honorable mention All-Big Ten as a junior.

Max McCaffrey, WR, Duke: Son of former longtime Denver Broncos receiver Ed McCaffrey, had 117 career catches at Duke for 1,341 yards and 12 touchdowns in 53 games, 38 starts. He is 6-foot-2, 200 pounds and a two-time Academic All-ACC selection for the Blue Devils.

Tony McRae, CB, North Carolina A&T: At 5-foot-9, 180 pounds, McRae probably fits as a slot corner. He had nine career interceptions, 27 passes defensed and 153 tackles, including a team-leading 55 as a senior, in 46 games for the Aggies.

Ryan O'Malley, TE, Pennsylvania: A big target at 6-foot-6, 265 pounds, O'Malley caught 20 passes as a senior and had 43 receptions for 495 yards and nine touchdowns in 40 career games for the Quakers. He was second-team all-Ivy league as a junior and senior.

Oni Omoile, G, Iowa State: A cousin of new Raiders left guard Kelechi Osemele, Omoile started 21 of 31 games over four seasons for the Cyclones, including 11 as a senior. Iowa State averaged 182.0 rushing yards per game last season..

Kyrie Wilson, LB, Fresno State: A tackling machine for the Bulldogs with 271 tackles, 151 solo. He had 4.5 sacks, five forced fumbles, eight passes defensed and two interceptions in 51 games, 38 starts, over four seasons. At 6-foot-2, 245 pounds, projects to see time in the middle of the Raiders' 4-3 base defense.