A University of Colorado defensive lineman was arrested on suspicion of 18 counts — including six counts of assault — after he reportedly tackled officers who were trying to stop him from harming his girlfriend and her roommates during a domestic dispute Sunday morning.

Nathaniel Blake Robbins, 22, was arrested on suspicion of two counts of first-degree assault on a peace officer, two counts of second-degree assault and two counts of third-degree assault.

Robbins also is facing two counts of criminal mischief, first-degree burglary, attempted second-degree kidnapping, second-degree burglary, resisting arrest, second-degree arson, obstruction of telephone services, harassment, obstructing peace officers and domestic violence, according to court records.

A judge set Robbins’ bond at $100,000. He remained in custody at the Boulder County Jail on Monday, pending a formal filing of charges Wednesday.

At Robbins’ first appearance in court Monday, Boulder Deputy District Attorney J.P. Martin said both officers were diagnosed with concussions and have not yet been cleared to work. Martin said it is “unclear,” what sort of recovery time they are looking at.

Martin added that Robbins would be looking at about 30 years of minimum mandatory prison time and up to 96 years in prison if convicted on the felony assault counts alone.

“For a young man with no criminal record, he came out of the gates with a very serious offense,” Martin said.

CU head coach Mike MacIntyre said in a statement Monday that he has suspended Robbins indefinitely from all team activities.

“I am deeply troubled by these allegations. They don’t represent the values of our university or football team,” MacIntyre said in his statement. “I also offer sincere apologies to the victims in this case, including two Boulder police officers. We have a strong and collaborative relationship with the Boulder Police Department, and I am very disappointed in Blake’s alleged conduct.”

According to an arrest affidavit, officers responded to an apartment on Arapahoe Avenue at 3:42 a.m. Sunday after dispatchers received a call about a domestic dispute between Robbins and his girlfriend.

Robbins’ girlfriend told police they had not been getting along recently because she suspected him of cheating. She had gone out to a bar on University Hill with some friends on Saturday when she ran into Robbins at the same bar. She allowed Robbins to go home with her and sleep on her couch.

The woman said that while Robbins was sleeping, she went through his phone and found evidence he was cheating on her. She told police she dumped water on his face to wake him up, confronted him with the cheating and told him to leave.

According to the affidavit, Robbins began to grab her and throw her around the room, grabbing her throat several times and attempting to choke her. He also burned a giant teddy bear he had bought for her on the apartment’s stove top.

During the struggle, both of the woman’s roommates tried to intervene and said they also were assaulted by Robbins, according to the report.

While the roommates were able to get to a neighbor’s unit to call 911, Robbins’s girlfriend ran from the apartment onto the landing below.

Two officers arrived as Robbins was trying to break into the neighbor’s apartment. One of them got in between Robbins and his girlfriend, pulled his firearm and ordered Robbins to get on the ground, according to the affidavit.

The officer said Robbins — who is listed at 6-feet 5-inches and 265 pounds — tackled him, causing the officer to fall down the stairs with Robbins on him. The second officer also was knocked to the ground, though Martin said there are some conflicting reports as to whether Robbins tackled him or threw him against a wall.

More officers responded to the scene and were able to subdue Robbins, who continued to struggle with officers until they were able to get him into handcuffs.

An investigator noted that there appeared to be two spent stun gun cartridges on the ground, but the report did not mention who may have tried to use the stun gun on Robbins or if it hit him.

A senior defensive lineman, Robbins transferred to the University of Colorado in 2014 from Georgia Military College in 2014. He played in four games in 2015 and recorded seven tackles.

Robbins had off-season shoulder surgery and was not participating in spring football.

Mitchell Byars: 303-473-1329, byarsm@dailycamera.com or twitter.com/mitchellbyars