Someone on Twitter has been saying hateful things about Jack Jablonski, the Benilde-St. Margaret's High School hockey player who was paralyzed during a game last year, KARE 11 reports.

Jack Jablonski is back in the hospital for the second time since being discharged from rehab last month. According to a post on his CaringBridge page, the Benilde-St. Margaret's sophomore has been up and down as he recovers from a serious spinal cord injury sustained in a hockey game last year.

Nearly 800 people, including dozens of NHL players, were at the Xcel Energy Center Thursday night to celebrate the progress being made by Jack Jablonski. The Benilde-St. Margaret hockey player was paralyzed during a game last winter.

With help from therapists, Jack Jablonski crawled and experienced other "significant events," his family said Monday, posting new video of a therapy session. The Benilde-St. Margaret hockey player was paralyzed during a game last winter, and with intense therapy he is making small strides toward his ultimate goal of walking.

Benilde-St. Margaret's hockey player Jack Jablonski left the Sister Kenny institute, where he's been rehabbing since January 23. Jablonski was paralyzed in a hockey accident in late December. His family is moving into a handicapped-accessible apartment until their home is remodeled.

The family of paralyzed Benilde St. Margaret’s hockey player Jack Jablonksi reports that the teen has sat up and is able to feed himself with help from a therapist. The family said on his Caringbridge page that there were “ups and downs” this week, however, they are incredibly proud of Jack’s determination and positive attitude during therapy.

The Benilde-St. Margaret hockey player who sustained a paralyzing hit in a game last year is defying doctors, moving his arms and shooting for a clear goal: to walk again. The Pioneer Press talks to Jablonski about his therapy, a gala planned for Thursday night with the Minnesota Wild, and tweeting with his knuckles.

Hockey legend Lou Nanne is urging the Minnesota State High School League to mandate more reminders to high school players about the dangers of checking from behind. The push comes after 16 year-old Jack Jablonski of Benilde St. Margaret's was paralyzed after being checked from behind during a game last week. The MSHSL sent out a warning to coaches Tuesday saying players need to be reminded that checking from behind is illegal and extremely dangerous.