The Robins manager is eager to strengthen his squad and was forced into several changes for the 2-2 draw with Plymouth on Tuesday night, with Marvin Elliott, Louis Carey and Michael McIndoe all failing fitness tests on the morning of the game - while Nicky Maynard was forced off at half-time.
"There will be a few back for Sheffield United," said Johnson. "Marvin, Louis and Macca are all great lads and they want to play with injuries - but we had to make a decision.
"We thought Maynard could come through, but even he had to come off in the end."



