Celtic are making moves early in the summer transfer window, with two Scottish Premiership rivals reportedly on their radar. The Hoops have set their sights on Marc Leonard, the 24-year-old midfielder currently on loan at Hearts from Birmingham City. Celtic will be closely watching his performances in the final three games of the season as they consider a permanent swoop. (Daily Record)

Meanwhile, the Scottish champions are also eyeing a potential attacking boost. Falkirk striker Barney Stewart, 22, has emerged as a target to strengthen the front line this summer. (Football Insider)

On the flip side, Celtic could face a significant departure. Arne Engels, the 22-year-old midfielder, is reportedly being tracked by RB Leipzig, with a summer exit from Parkhead on the cards. Premier League, Serie A, and La Liga clubs are also circling the talented youngster. (Florian Plettenberg on X)

Elsewhere in Scottish football, Raith Rovers are set to hold talks with Rangers over retaining 20-year-old midfielder Paul Nsio, who has been on loan at the Championship club. (The Scotsman) Dundee defender Ryan Astley, 24, is keen to stay put despite his contract expiring this summer. (The Courier)

Over at Aberdeen, manager Stephen Robinson is looking to make Toyosi Olusanya's loan move permanent. The 28-year-old striker is out of contract with Houston Dynamo this summer, though the MLS club holds an option to extend. (Daily Record) Robinson also promised that some of his summer signings "won't be sexy" but will deliver "granite solid" seven or eight out of 10 performances every game. (Press & Journal)

Inverness Caledonian Thistle are keen to keep 19-year-old striker Alfie Stewart, whose loan from Aberdeen is not being renewed. (Press & Journal) And in a notable international development, highly-rated 15-year-old Celtic striker Zion Pullan has earned his first call-up for Spain. (The Herald) Republic of Ireland boss Heimir Hallgrimsson has also confirmed Hibernian striker Owen Elding in the squad.