Two people took a small amount of cash when they into Northern Steel Decking in Manor Road earlier this week.
They are also said to have taken the signed racket during the burglary on Monday at around 1.25am.
Today police issued a description of one of the two suspects, who was wearing a purple jacket, purple gloves and a hat. Both had their faces covered.
Anyone with information, or who is offered the racket for sale, is asked to call 101, quoting incident number 67 of 27 June 2016.
Information can also be emailed to [email protected]