The Kansas City Chiefs strengthened their defense in the first round of the NFL draft.

The Chiefs traded up from pick 29 to pick 21 to select Washington cornerback Trent McDuffie, and they picked edge rusher George Karlaftis out of Purdue with the 30th pick.

Kansas City gave up picks 94 and 121 in their trade up with the Patriots to grab McDuffie.  He made four tackles for loss, but didn't have an interception with the Huskies last season.

Karlaftis had four-and-a-half sacks with the Boilermakers. The Chiefs had a pressing need at cornerback and they desperately needed pass rush help for a defense that managed just 31 sacks last season.

Kansas City still has two second-round picks at No. 50 and No. 62 along with a third-round pick on Friday night. Wide receiver is the Chiefs' biggest remaining need after sending Tyreek Hill to the Dolphins in the offseason.

By TOMMY REZACSt. Joseph PostThe Kansas City Chiefs strengthened their defense in the first round of the NFL draft.The Chiefs traded up from pick 29 to pick 21 to select Washington cornerback Trent McDuffie, and they picked edge rusher George Karlaftis out of Purdue with the 30th pick.Kansas City gave up picks 94 and 121 in their trade up with the Patriots to grab McDuffie. He made four tackles for loss, but didn't have an interception with the Huskies last season.Karlaftis had four-and-a-half sacks with the Boilermakers. The Chiefs had a pressing need at cornerback and they desperately needed pass rush help for a defense that managed just 31 sacks last season.Kansas City still has two second-round picks at No. 50 and No. 62 along with a third-round pick on Friday night. Wide receiver is the Chiefs' biggest remaining need after sending Tyreek Hill to the Dolphins in the offseason.

Kansas City Chiefs address defensive needs in first round of NFL Draft