The Dallas Cowboys are beginning rookie minicamp, which means many of the team's new draft picks and undrafted signees are arriving to the facility to begin their NFL careers. This also means that these players will be receiving their jersey numbers, though some are more temporary than others since many undrafted rookies don't end up officially making the team. However, former Cowboys safety Juanyeh Thomas is taking an issue with the way in which the team has handled it s new jersey numbers as it relates to honoring late Dallas defensive end Marshawn Kneeland. Thomas signed with the Indianapolis Colts in free agency this offseason but it's clear the passing of Kneeland is still on his mind. Kneeland, who wore No. 94 with the Cowboys, died at the age of 24 this past November only a few days after playing in Dallas' Week 9 loss to the Arizona Cardinals. The team honored him throughout the rest of the season, but Kneeland's jersey number has already found a new home on the Cowboys roster.…