Prosecutors in Marion County, Ind., added a Level 5 felony battery charge against former NFL quarterback Mark Sanchez on Monday for his alleged attack on a 69-year-old truck driver in Indianapolis on Saturday. Sanchez, 38, has pleaded not guilty to all charges.The additional battery charge, which falls within the second-lowest felony level under Indiana’s criminal code, carries a sentencing guideline of one to six years in prison and may also result in a fine of up to $10,000.Sanchez, an NFL analyst for Fox Sports, initially faced charges of battery resulting in injury, public intoxication and unlawful entry of a motor vehicle, all misdemeanors. Marion County Prosecutor Ryan Mears said during the Monday news conference that the additional felony charge was due to the alleged assault “involving serious bodily injury.”“We are literally talking about people fighting over a parking space or a dispute about where people are parking, and it resulted in someone receiving just incredibly significant injuries,” Mears said. “Where this incident took place was an area of the city which was very well covered by surveillance footage. There are multiple angles of surveillance footage which capture the events that occurred. And in addition, we had a number of civilian witnesses who came forward (and) provided information about what took place.”Mears also stated that the truck driver’s age could be considered an aggravating factor, which could result in additional penalties.“(Indianapolis Metropolitan Police Department Chief Chris Bailey) and his team have a number of search warrants that are still outstanding. They’re still tracking down additional information,” Mears said. “This is, by no means, the end of this investigation. This, by no means, means that these are going to be final charges that we move forward with.”Police arrested Sanchez on Saturday while he was in the hospital being treated for wounds suffered during the incident. Sanchez was stabbed multiple times in his upper right torso, police said, while the other man had a large laceration to his left cheek that required hospitalization.