Using data to assess the biggest transfers in Scotland this summer – data analysis

Scottish Premiership clubs have been busy making additions to their squads ahead of the league season kicking off next weekend.

After a relatively tight race last season, Celtic and Rangers have been refreshing their squads as they prepare to go head-to-head for the title again.

Elsewhere, Aberdeen and Hibernian have been overhauling their squads after disappointing bottom-six finishes last season, while Hearts, Motherwell and Dundee United have also been active in the market as they prepare for European adventures in the coming weeks.

In this data analysis article, data for three of the biggest signings from the summer window so far will be analysed to assess what exactly they will bring to their new clubs and where they will fit in.

The data for each player’s chart is retrieved from Wyscout, and Python is used to convert the per 90-minute numbers from their previous clubs into percentile ranks against others in those leagues. The percentile ranks are then presented in a pizza chart to visualise their performance across several key metrics.

#1 Alexandro Bernabei (22 years old) – Celtic

After last year’s huge squad overhaul following the arrival of new manager Ange Postecoglou, Celtic’s summer transfer window has been more about fine-tuning this time around.

They have still been active though with the permanent signings of Jota and Cameron Carter-Vickers who both played key roles while on loan last season as ‘The Hoops’ wrestled the title back from their city rivals. Former Dundee United goalkeeper Benjamin Siegrist, German defender Mortiz Jenz and former Huddersfield and Brighton midfielder Aaron Mooy have also been added to the squad ahead of the 22/23 season.