Dez Bryant badly wants his contract extension with the Dallas Cowboys negotiated before the start of the upcoming NFL season. The star wide receiver took to Twitter on Wednesday, addressing issues about his current contract with the Cowboys and saying he wants “security” and that he’s not “selfish,” as some critics have asserted.

Bryant is on a franchise tag by the Cowboys, who will pay him $12.8 million for the 2015 season. It appears the contract impasse will continue as Cowboys executive vice president Stephen Jones said in an interview that “right now there’s just too big of a divide” in the ongoing negotiations. There are reports that Bryant is willing to sit out from games in the upcoming season if there is no long-term deal in place.

Bryant, who is a two-time NFL Pro Bowler (2013 and 2014) and an NFL All-Pro First Team member (2014), is one of the top wide receivers in the league. He has recorded 1,200-plus receiving yards in the past three seasons, with 41 touchdowns.

Bryant is most likely looking at a long-term deal similar to that of Calvin Johnson, who signed a seven-year $113.4 million contract in 2012 with the Detroit Lions.