Danny Mills has suggested that Leeds United manager Marcelo Bielsa could dip into the January transfer window after making a “mistake” last season.

The former Leeds and England defender, speaking exclusively to Football Insider assistant editor Russell Edge, says that the Argentine hindered the club’s promotion hopes by making just one new signing.

The Whites saw their push for an automatic return go up in smoke towards the end of the 2018/19 campaign, before losing in the play-offs to Derby County.

With the January transfer window around the corner, Mills says Bielsa may have learned from last season and suggests he could bolster his squad to cover injury problems.

Mills told Football Insider: “We know Bielsa doesn’t like adding people to his squad midway through a season. He wants players to come in, they have to know the way that he plays, the levels he expects, the fitness levels.

“That was why he didn’t really bring anybody in last January which I still think is a little bit of a mistake – maybe he’s learned this time around.

“If there’s a couple of loan deals to be had, he might bring a couple in just as backup, to have around so that if he does need anybody in an emergency, the players are there.”

Bielsa’s only arrival back in January was goalkeeper Kiko Casilla, although the club also saw a deal for Dan James fall through at the eleventh hour.

The Whites have a number of loanees already on their books this season, the likes of Jack Harrison, Helder Costa and Ben White all regulars for the first-team.

In other Leeds United news, Noel Whelan admits he has been blown away by a transfer whisper he is hearing around Elland Road.