Conor McGregor has passed 11 PED tests in 2026. The next closest UFC fighter (Bassil Hafez) has 5 tests despite not competing since 2024 Some other notable fighters include Chimaev: 3 tests Merab: 1 test Alex Pereira: 2 tests Kayla: 2 tests Sean Strickland: 4 tests Joshua Van: 0 tests Carlos Ulberg: 2 tests Petr Yan: 1 test