10 Players Who Probably Regret Leaving West Ham

9. John Hartson

Despite a successful career at Celtic, years after his West Ham departure, John Hartson has since detailed his regret at leaving the Hammers in 1999. Following a crazy incident in which he kicked teammate Eyal Berkovic on the training ground, Hartson claimed many fans turned against him and his time at Upton Park was never the same again.
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Steven Bardgett hasn't written a bio just yet, but if they had... it would appear here.