Chase has joined the Championship club from Salford Red Devils on an initial two-year deal with the option of an extension.
The move marks a significant statement of intent by the club who narrowly missed out on promotion to the Super League last season.
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In an interview on Leigh's official Twitter feed, Chase said: "It's not a gamble to step down a division. I'm looking forward to enjoying my footy again which I will do here."
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