It was an unforgettable weekend for Sheffield United, as they confirmed their promotion to the Premier League, their first season back in the top tier since the 2006-2007 season.

After goals from Scott Hogan and Jack O'Connell gave the Blades a 2-0 win over already-relegated Ipswich at Bramall Lane on Saturday evening, Leeds' controversial 1-1 draw with Aston Villa the following day ensured that Sheffield United will compete in the Premier League next season.

The Blades could still go up as Champions next weekend, if they win at Stoke City and current league leaders Norwich lose at home to Aston Villa.

That however will be less of a concern to The Blades, who have now achieved the main goal of a return to the flight.

So here are three things we learnt about Sheffield United on a weekend that will go down in club folklore.

Jack O'Connell is badly underrated

He may be better known for his defending, but it was going forward where Jack O'Connell stepped up when Sheffield United needed him to against Ipswich on Saturday.

After assisting Scott Hogan for the Blades' opener with a delicious ball across the face of the Ipswich goal, O'Connell then turned scorer himself, heading in John Fleck's corner to all but seal three points and promotion for Chris Wilder's side.

It was another stand out performance by the centre-back, who has been a key, if at times under-acknowledged, part of the Blades' promotion push this season. That will not be the case again next season.

Blades' tactics will trouble Premier League defences

It may have only been against an already relegated Ipswich, but Sheffield United ran their opposition defence ragged on Saturday, and they will fancy their chances of doing the same next season.

The Blades looked ruthless in going for the three points they needed on Saturday, and even top-flight defences will surely be far from confident with dealing with the number of options Sheffield United seem to make for themselves when attacking.

The challenge for the Blades next season will be to avoid getting caught out at the back when they do push forward.

Chris Wilder has done a remarkable job with The Blades

When Chris Wilder arrived at Bramall Lane in May 2016, the Blades had just finished 11th in their fifth consecutive season in League One. Less than three years later, they are preparing for life in the Premier League.

That is a quite simply stunning turnaround under Wilder, and one that cannot be underestimated: two promotion seasons in three years is a magnificent effort, and one that surely puts his name in Sheffield United legend.

Given how quickly he has taken to the challenges thrown at him since his arrival at Bramall Lane, you wouldn't bet against him doing something just as impressive with this side again next season.