Why did Chris Simon get suspended?

Answer 1

On March 8, 2007, Rangers forward Ryan Hollweg checked Simon, knocking his face first into the boards. No penalty was assessed, and play continued. Simon then struck Hollweg in the face with his hockey stick as he skated by. Simon received a match penalty for attempt to injure, resulting in his ejection from the game. Simon was automatically suspended indefinitely by the NHL due to his match penalty pending ruling by the league commissioner. On March 11, Simon's suspension was set at a minimum of 25 games.

On December 15, 2007, Third period of a home game against Pittsburgh, Tim Jackman and Jarkko Ruutu had some words between the teams' benches during a stoppage of play. Simon skated in behind Ruutu and pulled Ruutu's leg back with his own. When Ruutu fell to his knees, Simon stepped on the back of Ruutu's right leg with his skate and then went to the bench. Simon was given a match penalty for attempt to injure and ejected from the game. The next day, Simon was suspended for 30 games

Twice suspended for Attempt to Injure.