Championship rumours: Nottingham Forest and Birmingham want Boro star | Leeds 'near' £13m deal | Updates on Derby, Hull

Middlesbrough and their Championship rivals continue to be busy in the transfer window - with plenty of rumours doing the rounds.

Reports today suggest that two of Middlesbrough's Championship rivals are interested in one of their prize assets - who could be set to leave the Riverside Stadium this summer.

Tony Pulis could be set to sell a striker

Tony Pulis could be set to sell a striker

Elsewhere, there are updates on a host of clubs from around the Championship as transfer activity steps up.

Here's the rumours hitting the headlines today:

Middlesbrough striker Britt Assombalonga is attracting interest from Nottingham Forest and Birmingham City. The 25-year-old only joined Boro last summer and netted 15 times in the last campaign - but is reported to have fallen out with boss Tony Pulis during the club's pre-season training camp. Nonetheless, Pulis is not prepared to sell the striker on the cheap (Northern Echo)

READ MORE: Boro striker could leave amid fallout with Pulis

Algerian striker Baghdad Bouneedjah is close to signing for Leeds United, according to reports in his homeland. The 26-year-old, who currently plays for Al-Saad in Qatar, is expected to join the Whites soon, although the same report suggests that he could cost a staggering £13.2m (L'Expression)

Swansea defender Alfie Mawson is a target for Premier League side Everton - who also remain keen on Boro's Ben Gibson (Yorkshire Evening Post)

Midfielder Darron Gibson could be handed a surprise route back in football having trained with Wigan (Sun)

Derby County have knocked-back Brighton & Hove Albion's interest in goalkeeper Scott Carson (Daily Telegraph)

Two centre backs are on Hull City's radar, with the Tigers keen on PSV's Jordy de Wijs and Yeovil's Tom James (Yorkshire Evening Post)

Rangers are keen on centre back Jake Cooper - but Millwall are unwilling to sell (Sky Sports)