Neymar has publicly apologised to his Santos teammate Robinho Júnior for slapping him during a training session, as the pair appeared to put the dispute behind them during a game on Tuesday. Santos said they had opened an investigation this week after the altercation between Neymar and the 18-year-old son of Robinho, the former Real Madrid and Manchester City striker. “If you want an apology in front of the press, here it is. I had already apologised to him and to his family. I crossed the line,” Neymar told reporters after Santos’ 1-1 draw against Recoleta in Paraguay. According to Brazilian media, the spat occurred because Neymar, the national team’s all-time leading scorer, did not appreciate being dribbled past by his teenage teammate during a training session at the club’s CT Rei Pelé complex on Sunday. Robinho Jr confirmed after the Copa Sudamericana match on Tuesday that Neymar had slapped him, but said the incident was over, stating: “Everything is resolved.…