Roger Federer And The RF Logo: Nike Holds Legal Advantage, Expert Says. By Pradhan Muthanna Published 08/01/18 AT 4:04 AM EDT.

Some are dressed in the red and white of the Swiss flag, others are sporting the “RF” monogram somewhere on their person – on earrings, t-shirts, bags, caps, tattooed on body parts.

The RF monogram is owned by Federer and only licensed to Wilson and one other brand, which means anything with that insignia has been put through its paces by the Swiss tennis player himself.

Roger Federer, the most successful tennis player of all time, is proving to be a particularly popular at the turnstiles at this year’s Wimbledon.

A row of spectators, some way back from the court, are waving a chain of little Swiss flags. Those white-on-red crosses have followed Roger Federer everywhere over his glittering, 24-year career.

An RF-monogrammed zip-up with gold piping, the jacket sported the number 15 – the record-breaking total of grand slam titles Federer had won upon his match victory – in cursive embroidery.