Championship promotion race: How did the January window impact the battle to reach the Premier League?

The January window is shut and the race for the Premier League is well and truly on.

But how did winter business impact the Championship promotion battle? Did all the runners and riders get the players in they need, or did they leave themselves short?

We take a look...

Frank Lampard mentioned time and time again when Coventry were flying in the early part of the season that their squad lacked depth, and those warnings came to pass in the hectic period around December and January. A lead that once seemed unassailable at the top has been cut to just goal difference.

They needed extra options in attack, midfield reinforcement and perhaps an extra centre-back.

While many Coventry fans would have been hoping the club would go big to capitalise on their best position in years, overall the business has been solid.

Onyeka could prove vital in the middle of the park for a team that have let leads turn into defeats in their last two games. While Yang hasn't quite hit the ground running yet, Esse has certainly impressed.

To hold on to Hayden Hackney, who was subject to bids on Deadline Day. And to maybe add a striker. Overall, the squad was pretty solid.

Yes. There would have been some murmurings of perhaps needing another striker, but overall the business has strengthened them in areas they were a little light.

Some added depth in the full-back areas wouldn't have hurt, as well as maybe some more backup for Oli McBurnie up top.

Absolutely. Hull have emerged as unlikely contenders in the promotion race, and they strengthened superbly with the loan market in January. Their squad is far stronger than it was at the turn of the year.

A striker. George Hirst and Chuba Akpom haven't quite done the business this season in attack and having someone putting away the amount of chances they create could fire them back towards the top two.

Not exactly. They didn't need a huge amount with the squad they have at their disposal, but a No 9 could have made the difference and they didn't get one in.