Defensive end Randy Gregory of the Dallas Cowboys, already on suspension for violating the NFL's substance-abuse policy, tested positive for the seventh time, according to media reports.
Gregory was tested on Feb. 21 and on March 2 and was reportedly informed that he had tested positive for marijuana. He has since been uncooperative with NFL officials trying to discuss the situation.
"This is a disappointment," Cowboys executive vice president Stephen Jones said when Gregory was suspended for the first four games of the 2016 season.
"We have been clear with Randy about what his responsibilities are and what is expected of him. This is something that he is going to have to work through and correct."
However, Gregory was suspended for 10 more games last September, and in January was suspended for at least a year following additional positive tests.
Gregory, 24, was considered one of the best players in the 2015 NFL Draft out of Nebraska but was not selected until the 60th pick because of off-the-field concerns and he was hampered by injuries as a rookie.
Now the speculation is that his career is over before it ever really began.