By SAM JACKSON

CARDIFF and Wales fullback Hallam Amos will retire at the end of the season to focus on his medical career.Amos, 27, was left out of the Wales squad by coach Wayne Pivac, who hinted his medical career was a factor.He recently completed his clinical medical exams and told Cardiff and the WRU he will hang up his boots in June 2022.Amos made his Wales debut aged 19 against Tonga in 2013 and won the last of his 25 caps against Argentina in July 2021.“This season will be my last,” Amos said. “I’m grateful for the incredible experiences Iȁ...