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ROBBIE KEANE CONTINUED his LA Galaxy goal run but then saw red as the MLS champions beat El Salvador’s Isidro Metapan 5-2 on Thursday.

Keane’s header in the 23rd minute was his third goal in as many games as the Galaxy opened their CONCACAF Champions League campaign at the Home Depot Centre.

After falling behind in the 17th minute, a star turn by David Beckham rallied the hosts. His cross led to the Galaxy’s equaliser, a Ricardo Alvarado own goal, before Keane’s header gave them a 2-1 lead.

Beckham capped the evening when he scored directly from a corner on the stroke of half-time before Brazilian Juninho wrapped up a comfortable win with second-half goals either side of a Munoz penalty.

Keane was given his marching orders by Alfredo Penazola after he disputed the referee’s decision to book him for diving, a call which left manager Bruce Arena scratching his head.

“I don’t know. The ref missed the call and typical, we’ve seen in these competitions, the referees think they’re bigger than the game itself and they’ve got to put themselves ahead of everything,” Arena told LAGalaxy.com.

Robbie spoke, said something, whatever, but when a referee misses a call like that, he’s got to be big enough to kind of ignore it and let the game go on.

So a player gets a yellow card for diving when he’s fouled and then obviously a red card for, I don’t even know. They didn’t explain anything to us.