The former Derby County midfielder scored his 10th league goal of the campaign in Sunday's 1-0 win over Inverness, taking his season tally to 15 in all competitions, and prompting praise from centre-back Ambrose.
"Everything is going right for him," Ambrose told the club's official website. "He is one of the best players we have up front and he scores a lot of goals for us and is helping the team a lot. We are just lucky to have him.
"Last year he did well for us and he was one of the top scorers at the club. Coming from midfield, no one really understands when he goes and shoots as he is not a striker so they just can´t mark him up, and he is really good form now."
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