"He trained with us on Wednesday and everything is agreed," Jewell told the Telegraph.
"Darren has been at Charlton for a while and they want to sign him but, luckily enough, we got the nod on him and have signed him.
"It gives us a bit of cover. It probably suits both parties. We can have a look at him and he can have a look at us.
"But if he comes and does well, he can earn himself a contract to the end of the season. Hopefully he will do well and get something longer."



