A man who allegedly stabbed San Francisco 49er player Aldon Smith in San Jose in 2012 pleaded not guilty today in Santa Clara County Superior Court to felony assault with a deadly weapon, firearms and gang-related charges.Steven Raymond Barba, who appeared in court in jail clothes, a long ponytail and tattoos on his neck and arms, entered his plea while sitting in a jury box with other defendants in the courtroom in San Jose before Judge Hector Ramon.The district attorney's office has charged Barba, 27, with stabbing Smith in the leg and an enhancement for being part of a street gang, plus two counts of being a convicted felon in possession of a firearm, according to court records.Ramon set a preliminary hearing on the felony charges, and an allegation that Barba violated probation on a previous criminal conviction, for July 15 at the Hall of Justice. - Plaintiff Settles Civil Suit vs. 49ers' Aldon SmithAccording to prosecutors, Barba stabbed Smith two times, causing minor wounds to Smith's leg, as the 49ers linebacker was attempting to disperse hundreds of people attending a party at Smith's hillside home east of San Jose early in the morning of June 30, 2012.Smith and his...