Diakite, Knott and Mandron set to feature on Tuesday evening.
Modibo Diakite will hope to feature this evening as Fiorentina host Udinese in the second leg of the Coppa Italia semi-finals.
Diakite made his debut for the Florence-based club in the 2-1 first leg defeat in Udine and his side know only a win will see them make the final this evening.
The game is live on Sky Sports 3 with kick-off at 8pm.
Elsewhere, Billy Knott’s Port Vale will look to close the gap on the League One play-off places to six points when they host Colchester United at Vale Park.
The Valiants have lost 3-2 in both of Knott’s appearances since joining the club in January and a third consecutive defeat would see Micky Adams’ side edge towards the bottom half of the table.
Meanwhile, Mikael Mandron will be eager to feature for Fleetwood Town after the Cod Army’s fixture at Newport was called off last weekend.
Graham Alexander’s side travel to Wycombe Wanderers knowing a win could see them return to the top three in League Two.
Mandron has scored once in six appearances since moving to Lancashire in January.