Ismael Saibari, the 12-hole socks, and the calf controversy at Bayern Munich

Ismael Saibari has become Bayern Munich's most talked-about player after the 5-1 win over Stuttgart, not because of goals but because of his socks. The 25-year-old appeared against Schalke with 12 holes in his socks, leading Bild to compare his legs to Swiss cheese. The story touches on a real issue: tight compression socks can restrict blood flow and affect calf muscles, which swell by 5 to 8 percent during a match. German Football League rules, specifically Clause 42.1 c.3, state that socks must not have holes. However, refereeing expert Lutz Wagner says officials will only intervene if the holes affect colour distinction between teams. FIFA and IFAB's key principle is that referees must be able to identify players clearly. Saibari told Bild he needs loose socks because his calf muscles are thick. This is a common practice among professional footballers who modify equipment to avoid discomfort and injury. The DFL issued updated clothing guidelines on December 5, 2026, showing the league is trying to clarify the rule. The real issue is not the 12 holes, but the gap between written rules and on-field reality. A formal clarification from the DFL would help referees and players alike.