The year of 2019 has been busy for sports tourism in the United Arab Emirates, and especially in Abu Dhabi. The Adnoc Abu Dhabi Marathon was hosted by the city last weekend, with the Etihad Airways Abu Dhabi Grand Prix being won by Lewis Hamilton at the start of the month. The 12th edition of the Mubadala World Tennis Championship will also be coming to the emirate next week. Nor is this hectic pace confined…