We take a look at the key moments that could unfold over the weekend as the promotion rivals continue to do battle. Scroll down and click through the pages to see what the Black Cats' competitors will be up to:
Both of these sides are still well in the promotion mix and, while the play-offs look likely for the pair, a push towards the top two can't be ruled out. This could be an interesting one...
They will have to do without manager Lee Bowyer on the sidelines, with the former Newcastle midfielder facing a three-game touchline ban after being found guilty of verbally assaulting a referee.
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Liverpool loanee Herbie Kane, who has been in inspired form for Rovers, is rated as 50/50 ahead of the battle of the promotion contenders at the Keepmoat Stadium
Luton Town - who are five points clear at the League One summit - will face struggling Rochdale at home this weekend. Both sides will be desperate for points for different reasons.
"We will do some top-ups with the players who haven't had many minutes, so they will get extra work. Hopefully we will be ready for the weekend and have a real go at this lot."
Barnsley will travel to Southend United in Saturday's early kick-off, in a clash which could be a potential banana skin. The Roots Hall side have claimed some surprising results this campaign.
This is an important time in the season and everyone must stay together. The dressing room has lots of players who can score goals, and all help the team." - Daniel Stendel, Head Coach
And they will welcome Bradford City to Fratton Park this weekend. On paper it should be a comfortable win for Pompey, but could the Bantams spring a shock under new management?
"We can go down there and give everything to try and get that win. Hopefully we can prove our point and prove a few people wrong." - Eoin Doyle, Bradford striker
Darren Ferguson's Peterborough United could still make a late surge for promotion, and they welcome mid-table Wycombe Wanderers on Saturday.
Joey Barton's Fleetwood are unlikely to achieve automatic promotion, but a potential play-off date with Sunderland is a possibility. They host Gillingham this weekend.
The Pool are on the same points as local rivals Fleetwood and could also mount a play-off push. They travel to Bristol Rovers, who Sunderland face on Tuesday evening.
Sunderland, of course, host Plymouth Argyle this weekend - knowing a win and dropped points from Barnsley could take them into the top two.