Charismatic American Colin Edwards will call time on his racing career at the end of the 2014 MotoGP season, it was announced on Thursday.

Fellow Texan Ben Spies spent his rookie 2010 MotoGP season alongside Edwards at Tech 3 Yamaha, and was asked to recall the experience during an interview with earlier this week.

"That was probably one of the coolest years of racing for me... He's definitely crazy!" said Spies. "I was always a fan of Colin, from when I started racing back in '92 at Texas World Speedway and with him doing the WSBK thing, I kind of followed in his footsteps a little bit.

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"Being his team-mate was an honour even though that year I was a little bit faster. It was an honour just being with him. It was kind of cool because, as everyone knows, it's always different nationalities of team-mates in MotoGP - English and Spanish, Spanish and Italian - and Dorna don't really like having team-mates from the same country.

"But me and him Americans, never mind Texans, as team-mates - I don't think that will ever happen again. So that was pretty cool and we were able to make some cool [promotional] videos and have some fun. It was a fun year."

Spies was forced to end his own MotoGP career at the end of last season, due to injury.