Trouble for the fledgling Alliance of American Football ominously continues.

The first-year AAF is in danger of folding due to a lack of cooperation from the NFL Players’ Association to use NFL players, according to the league’s majority owner, Tom Dundon.

“If the players union is not going to give us young players, we can’t be a development league,” Dundon told USA Today on Wednesday. “We are looking at our options, one of which is discontinuing the league.”

Dundon, the owner of the NHL’s Carolina Hurricanes, invested $250 million last month to help keep the new league afloat. He added he expects to make a decision about the AAF’s future by the end of this week.

Neither the NFL nor the NFLPA has officially commented, but a players’ association official told USA Today the union has “serious concerns” about injury risks and the legal ramifications of allowing NFL players to participate in the AAF, which is entering Week 8 of a 10-game schedule.

Former Heisman Trophy winner Johnny Manziel made his debut with the AAF’s Memphis franchise last week after he was released from his contract by Montreal of the Canadian Football League.