The news that Holt's switch for an undisclosed fee had been completed was announced by the two clubs simultaneously on Monday evening on their respective official websites.
Regarding the capture of the 32-year-old, Wigan boss Owen Coyle told www.wiganlatics.co.uk: "This is a fantastic piece of business for us at a really good price.
"Grant is a proven goalscorer at every level and he will definitely bring something new to the table that we were missing in the squad."
Source: PA
Source: PA