Barcelona’s 20-year-old left-back Alex Valle will be unveiled on loan from Celtic on Wednesday. (Fabrizio Romano) , external

Celtic will make an increased offer of £9m for Augsburg’s Arne Engels. The Bundesliga club hope to keep hold of the Belgian midfielder but the 20-year-old is keen on a move away. (Sky Sports), external

Celtic have made a £5million bid for Sheffield United and USA defender Auston Trusty. (Daily Record), external

Blackburn Rovers have opened talks with Rangers over midfielder Todd Cantwell, with a loan option and a permanent move under discussion. (Daily Record), external

Sheffield United have agreed a transfer fee of £2.5 million for Celtic winger Mikey Johnston, but other English Championship clubs are also interested in the 25-year-old. (Alan Nixon, external – Subscription required)

Birmingham City are looking to sign Rangers winger Scott Wright after signing defender Ben Davies on loan from the Ibrox club. (Scottish Sun), external

Rangers’ major shareholders are baffled by a report that a group of American investors are considering pouring millions into the club. (Daily Record), external

Former Rangers chairman Dave King, the club’s largest single shareholder, says there is “no truth whatsoever” to reports that investors are interested in acquiring a stake in Rangers (Scottish Sun), external.

Manchester United have allowed Scott McTominay to travel to Naples for medical tests and to sign his contract after agreeing a package of €30 million plus a sell-on clause for the Scottish midfielder. (Fabrizio Romano), external