The striker was central to one of United's strongest performances of the season against Derby County on Tuesday night, but his effort and that of his team-mates failed to rescue Leeds from a fourth-round defeat.

Derby scored twice in the first 18 minutes at Pride Park – both goals coming from poor marking by Gary McAllister's defenders – and weaknesses in United's backline have been his one concern in an otherwise promising season.

Leeds have produced a total of five clean sheets this term, with the club preparing for their 23rd game of the term against Huddersfield Town at Elland Road today, but Snodgrass argued that criticism of McAllister's back four was overlooking their contribution to Leeds' consistent league results.

Snodgrass said: "You can't really point the finger at the back four. They've bailed us out a few times this season with last-ditch tackles, and they've been pretty solid.

"You need to defend as a team and that starts from the top, but there's enough experience at the back with players like Paul Telfer and Frazer Richardson to bring the lads together.

"Jonathan Douglas can operate like a bit of fifth defender for us as well, and he's been quality. We've also got Steve Staunton (United's assistant manager) who knows all about how to play in defence so it will come good."

Telfer and Michalik were at the centre of McAllister's defence on Tuesday, as they have been for the past six matches, but United's manager has alternatives to consider with ex-Newcastle United trainee Paul Huntington fit after a groin injury and Rui Marques recovered from a hamstring strain.

Improving the consistency of his backline is a key priority for McAllister, but he also has positive selection issues in attack after Snodgrass' rise into United's first team.

The Scottish forward made an influential contribution to last week's 1-1 draw with Northampton Town in the first round of the FA Cup, and he was no less important at home against Championship opponents at Pride Park.

United's leading scorer, Jermaine Beckford, was named on the bench on Tuesday to accommodate Snodgrass and Luciano Becchio in Leeds' starting line-up against Derby, and McAllister feels his summer signing from Livingston has merited his chance in the first team.

McAllister said: "He didn't come here with great expectations (among United's supporters) because I don't think a lot of people in this part of the world knew who he was.