Denton, who has been a regular figure for the Millers reserves, has been drafted intio the dressing room recently to give him some experience and will travel with the side for this weeks clash.
Darren Patterson said he was keen to get Denton involved.
"I'm keen to get as many youth players through as I can and Darren Sarll has done an outstanding job with him this season.
"Alec will travel to Wimbledon but we`ve got Sam Hoskins here as well who was unfortunate not to get in. If we can get him some football we will - I would have no problems putting the lad in."