4 Arsenal sales included sell-on clauses this summer

4 Arsenal sales included sell-on clauses this summerFabio Vieira’s transfer from Arsenal to Hamburger SV for a low fee may be boosted in the future by a sell-on clause, according to a report.Photo by Stuart Franklin/Getty ImagesJames Benge reports for CBS Sports that Arsenal’s deal to sell Fabio Vieira to Hamburger SV included a sell-on clause, which could potentially add to the small amount the club brought in for the initial transfer.Arsenal also reportedly have sell-on clauses in