While manager Brian Little plans to give all his players at least 45 minutes of action, he will also run the rule over Nick McNamara, Gavin Hurren and Marcus Bignot.
Hurren, 24, is a defensive midfielder who was at Tamworth at the beginning of last season but left to play in Australia. He has also previously played for Kidderminster Harriers and Mansfield Town.
Midfielder McNamara, 20, came through the ranks at Hull City before joining Rushden and Diamonds in March 2009.
Bignot, 35, is an experienced right-back who made more than 180 appearances for QPR and also played for Crewe, Bristol Rovers, Rushden and Millwall.
"Those three have been with us this week and have done well and now I need to have a look at them in a match," said Little.
"We have not got a big squad, but I think we have a fairly strong squad. However, if we feel a player can improve the squad then the option is there for me to sign them."