United's Professional Development League Two campaign began with a goalless draw against Colchester United at a damp Redtooth Academy on Wednesday afternoon.
Summer signing James Wallace completed the last 30 minutes of the game on his comeback from injury, whilst centre-half Sam Berry, formerly of Derby County, played 90 minutes against the U's.
Teenager Berry has been handed a five-month contract by the Club to allow manager Nigel Clough and his management team an opportunity to assess the progress of the youngster.
The first action of note didn't come until midway through the first-half when Sanchez Watt, a former Arsenal trainee, burst clear for the visitors, only to see his shot hit the crossbar.
Despite having plenty of possession United didn't create many opportunities in the first period, although several players looked lively in front of the watching Clough and members of his coaching staff.
The second-half began with United quickly out of the traps and De Girolamo could have put the hosts in front in the 52nd minute, only to see his looping effort go a fraction too high.
Midfielder Wallace was introduced into the action on the hour mark, replacing Coustrain, with the former Tranmere man looking to prove his fitness to the coaching staff, having seen his progress with United hampered by a niggling groin complaint.
The Blades continued to look the most likely to force a winner, but despite the introductions of Cockerline and Calvert-Lewin, the visitors defended resolutely to ensure they headed back down south with a point, as heavy rain for much of the second-half dampened the game as a contest.
Blades: Turner, Paling, Scarisbrick, Dimaio, Berry, Evans, Khan, Whiteman, McDonagh (Cockerline 70), De Girolamo (Calvert-Lewin 79, Coustrain (Wallace 60).
Unused: Willis, Cheeseman.