Old Firm stars Alfredo Morelos and Scott Brown love a bit of needle on the pitch because of their tattoos, a study suggests.Swiss researchers found that footballers with body art are more likely to pick up bookings, and that players with visible tattoos tend to be “aggressive, risk-taking extroverts”.And the findings seem to be backed by analysis of this season’s Scottish Premiership campaign.Top of the bookings chart is tough-tackling Motherwell midfielder Liam Donnelly with 12 yellows and a red, and his whole left arm is covered in a giant tat.Hot-headed Rangers striker Morelos (10 yellows and two reds this season) and his wife Yesenia recently unveiled matching tattoos with the motto: “Always together, always strong.”Kilmarnock battler
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