The USA striker scored 23 Eredivisie goals for AZ last season and says that he would relish another move to England after scoring only once for Hull City in 2009-10
The 23-year-old, who has scored 17 goals in 60 appearances for USA, has enjoyed a fine spell in Netherlands since joining the Alkmaar outfit in 2011 and has drawn speculation about a move abroad this summer.
And the former Hull City striker has seemingly welcomed offers from England by dubbing it the "biggest league in the world."
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Despite scoring only once for the Tigers in 28 appearances as the club were relegated from the Premier League in 2009-10, the forward denies that he was an outright flop during his loan spell from Villarreal.
"I think I was 19 or just turned 20 and I had not played in Europe before that. It is a totally different style from MLS," he added. "I have come a long way since then.
"I am almost a different player and I have learned a lot so I don't think there is any resemblance to that time if I went back to the league any time soon. I have played 100-plus games [since leaving Hull]. Playing there at that age and playing in the best league in the world, you can't expect to hit the ground running.
"Some of my performances at Hull were not as bad as people think, some of them were actually pretty good.
"I don't look back at it as a sad experience. It was a great experience because I got to see what the highest level was like."