Versatile defensive lineman entering his third campaign with Kansas City … Unheralded performer joined the Chiefs as an unrestricted free agent from Chicago on March 20, 2007 … Can play any spot on the defensive front, although the bulk of his previous work with the Chiefs has come at right defensive tackle … Owns 19 starts in a Chiefs uniform, having opened 15 games at right defensive tackle, three games at right defensive end and one game at left defensive end … Playoff-tested performer owns five games of postseason experience, including an appearance in Super Bowl XLI with the Bears … Has played in 113 regular season games (37 starts), producing 198 tackles (139 solo) with 14 tackles for loss, 12.5 sacks (-85.5 yards), 12 passes defensed, 11 QB pressures, a forced fumble and three fumble recoveries … Also owns a blocked FG and a blocked PAT … Has played in five postseason contests, registering four tackles (two solo).

Transactions: Signed with Kansas City as an unrestricted free agent from Chicago (3/20/07) ... Signed with Chicago (8/19/02) ... Signed with Chicago (11/21/00) from Detroit’s practice squad … Added to Detroit’s practice squad (8/29/00) ... Released by Detroit (8/28/00) ... Signed with Detroit (7/17/00) ... Entered the NFL as a seventh-round selection (253rd overall) of Detroit in the 2000 NFL Draft.

Kansas City (2007-08): Has played in 30 games (19 starts), recording 45 tackles (39 solo), 2.0 sacks (-19.0 yards), four passes defensed, a fumble recovery and 11 QB pressures.

2008: Appeared in 15 games (four starts) and was inactive for one contest … Registered 14 tackles (12 solo) with one for loss, a sack (-8.0 yards), three QB pressures and one pass defensed … Sacked Matt Cassel at New England (9/7) ... Produced four tackles and two QB pressures vs. Oakland (9/14) ... Tallied three tackles at Carolina (10/5) ... Compiled one tackle and one QB pressure at San Diego (11/9) in a starting role at right defensive end in place of an injured DE Turk McBride … Started at left defensive end in place of an injured DE Tamba Hali vs. New Orleans (11/16) ... Started at right defensive end at Oakland (11/30) ... Was inactive vs. Miami (12/21) with a thigh injury suffered vs. San Diego (12/14).

Started 15 games at right defensive tackle and was inactive for one contest … Posted 31 tackles (27 solo) with a stop for loss, a sack (-11.0 yards), eight QB pressures, one fumble recovery and three passes defensed … Collected a career-high seven tackles and a sack of Matt Schaub at Houston (9/9) ... Recovered a WR Bernard Berrian fumble at Chicago (9/16) ... Contributed two tackles and three QB pressures vs. Cincinnati (10/14) ... Posted five tackles and had three QB pressures, including a hit on QB Brett Favre which led to an errant pass that was intercepted by CB Benny Sapp vs. Green Bay (11/4) ... Was inactive vs. Tennessee (12/16) with a head injury suffered at Denver (12/9).

Chicago (2000-06): Saw action in 83 games (18 starts) ... Registered 153 tackles (100 solo), 10.5 sacks (-66.5 yards), eight passes defensed, a forced fumble and two fumble recoveries … Added one blocked field goal and a blocked PAT … Also saw action in five postseason games, recording four tackles (two solo).

2006: Played in 12 games, starting four contests at left defensive tackle … Produced 35 tackles (24 solo), including three stops for loss and 2.0 sacks (-13.0 yards) ... Had a sack of Jon Kitna vs. Detroit (9/17) ... Recorded six tackles at Arizona (10/16) ... Collected five tackles vs. Minnesota (12/3) ... Credited with five tackles vs. Tampa Bay (12/17) ... Had a sack of Jon Kitna at Detroit (12/24) ... Played in three playoff games, recording two tackles (one solo) ... Had one tackle in an NFC Wild Card Game vs. Seattle (1/14/07) ... Saw action as a reserve in the NFC Championship Game vs. New Orleans (1/21/07) ... Posted one tackle in Super Bowl XLI vs. Indianapolis (2/4/07).

Appeared in 16 games with one start … Registered 22 tackles (11 solo), with two behind the line, 1.5 sacks (-10.0 yards) and three passes defensed … Also blocked a field goal and a PAT … Blocked a K Remy Hamilton PAT attempt vs. Detroit (9/18) ... Blocked a K Paul Edinger FG attempt vs. Minnesota (10/16) ... Had half of a sack of Anthony Wright vs. Baltimore (10/23) ... Totaled four tackles and a sack of Jake Delhomme vs. Carolina (11/20) ... Collected a season-high five tackles as a starter when the club opened with five defensive linemen at Minnesota (1/1/06) ... Saw action as a reserve in an NFC Divisional Playoff Game vs. Carolina (1/15/06).

Played in 12 games with two starts at nose tackle … Recorded 18 tackles (11 solo), including two for loss, as well as 2.5 sacks (-13.5 yards) and one pass defensed … Was inactive with a knee injury at Minnesota (9/26), vs. Philadelphia (10/3), vs. Washington (10/17) and at Tampa Bay (10/24) ... Totaled 1.5 sacks of Daunte Culpepper vs. Minnesota (12/5) ... Sacked David Carr vs. Houston (12/19).

Saw duty in 16 games with six starts at left defensive tackle … Totaled a career-high 39 tackles (30 solo) with two behind the line, a sack (-8.0 yards) and three passes defensed … Posted five tackles at San Francisco (9/7) ... Registered six tackles and deflected a pass that was intercepted by teammate DE Alex Brown in a starting role vs. Oakland (10/5) ... Produced four tackles in a starting role vs. Detroit (11/9) ... Sacked Marc Bulger vs. St. Louis (11/16) ... Had five tackles at Denver (11/23).

Appeared in 16 games with five starts … Amassed 28 tackles (22 solo), including three stops for loss … Added 1.5 sacks (-5.0 yards), one forced fumble, a fumble recovery and a pass defensed … Produced four tackles and forced a QB Michael Vick fumble at Atlanta (9/15) ... Made his first career start in place of an injured DT Ted Washington vs. New Orleans (9/22) ... Recovered a QB Joey Harrington fumble in a starting role in place of Washington at Detroit (10/20) ... Registered five tackles at Minnesota (10/27) ... Had a career-high 1.5 sacks of Rob Johnson as a starter vs. Tampa Bay (12/29).

Played in 11 games and was inactive for five contests … Recorded 11 tackles (two solo), 2.0 sacks (-17.0 yards) and one fumble recovery … Saw his initial NFL duty at Cincinnati (10/21) ... Recovered a QB Brad Johnson fumble vs. Tampa Bay (12/16) ... Registered two tackles and a sack of Joey Harrington at Detroit (12/30) ... Sacked Mark Brunell vs. Jacksonville (1/6/02) ... Posted two tackles in an NFC Divisional Playoff Game vs. Philadelphia (1/19/02).

Was inactive for five games after signing with Chicago on November 21st.

Began his collegiate career at NAIA Central State in Wilberforce, Ohio in ‘95 … Transferred following his freshman season when the school dropped its football program … Sat out two seasons before enrolling at Mt. San Antonio Junior College in Walnut, California in ‘98 … Was allowed to play only two seasons with the Mounties because his five-year college eligibility clock started in ‘95 and continued to run even when he did not play football … Started 10 games as a junior in ‘99, recording 15.0 tackles for loss, 17.0 sacks, five forced fumbles and four fumbles recoveries … Named the ‘99 Mission Conference Defensive Player of the Year … Recorded 15.0 sacks and 15.0 tackles for loss as a sophomore in ‘98 … Earned first-team Junior College Grid Wire All-America and all-conference honors.

• A prep standout at Arthur Hill High School in Saginaw, Michigan.

• Full name: Alfonso D. Boone.