Kammala wannan jumla: A watan Janairun 2016, Best an nada shi a matsayin sabon kyaftin din Ireland don
Gasar Kasashe shida ta 2016. A ranar 26 ga Nuwamba, 2016, Best ya zama dan wasan Ireland na biyar, inda ya samu kwallo na 100 a wasan gwaji da Australia a filin wasa na Aviva, Dublin. A makon da ya gabata, Best ya jagoranci Ireland zuwa nasara ta tarihi 40 <unk> 29 a kan New Zealand a cikin bayyanarsa ta 99, nasarar farko ta Ireland a kan New Zealand.