It was tough, but it was a penalty and it had to be a red.
No doubt it hit his upper arm. His arms weren't straight down his side.
Sorry guys penalty and red
You're right - technically by the rules, it was a straight red and penalty. But damn that's a harsh rule - I don't ever think a defender in Kewell's situation deserves to be sent off. The humiliation of giving away a penalty is enough IMO.
he also now misses the next game. Sometimes when it's not foul play a sent off should be enough.