During the NXT Championship match that saw Andrade "Cien" Almas win the NXT title, Drew McIntyre injured his left bicep. It didn't stop him from finishing the match, but it seems serious enough that it will keep him out of action for the foreseeable future.
This couldn't come at a potentially worse time for McIntyre who (while not confirmed) was likely looking at making his way up to the main roster in WWE after losing his match. It's customary for champions to pass on the title in a loss before being promoted. Since "Cien" Almas wasn't even close to a favorite to win that match, many assumed the writing was on the wall and McIntyre was set to move on from NXT.
If that was, in fact, the plan, his promotion to the main roster looks like it will have to be placed on hold.
Triple H made the announcement post NXT Takeover: WarGames in a video interview and McIntyre himself commented on his status in a post-match video. Both seemed disappointed but McIntyre's disappointment could be more attributed to his losing the title.
McIntyre is no stranger to hardship. When he first arrived in WWE he was touted as the next big thing—a Vince McMahon guy. He won the Intercontinental Title and was one-half of the WWE tag team championships. Still, he didn't live up to lofty expectations and in June of 2014, was released from his WWE contract. He went on to wrestle for independent companies along with TNA where he held the main title and reestablished himself as a star. He fought his way back from a reputation of an underachiever to another shot, this time with NXT.
If McIntyre can come back from those odds, it seems obvious a setback like a torn bicep won't keep him out of action long.