Cowboys' Liufau shifts to edge rusher, Howell aims for QB2

Dallas Cowboys player Marist Liufau is transitioning from linebacker to edge rusher, seeking to redefine his role in the upcoming training camp. Meanwhile, quarterback Sam Howell is focused on contesting for the QB2 position as the team prepares for the season. Emmitt Smith has publicly supported former teammate Chris Johnson, participating in the ALS Ice Bucket Challenge. The Cowboys are also assessing several players, including potential returnees Donovan Wilson and Jadeveon Clowney. As training camp approaches, the Cowboys hope to reshape their roster and overall reputation.

• 10:07 AMYahoo Sports — Cowboys Headlines: Liufau's big switch; Howell eyes QB2 job; Emmitt's shout-out for CJ2K