Wales stopped a run of three home defeats as they saw off Argentina with two tries in Cardiff.
It was a gutsy effort by Wayne Pivac's men after their hiding at the hands of the All Blacks a week earlier.
Taulupe Faletau and Tomos Williams claimed touchdowns but the Pumas stayed in the game and made the hosts endure a nervous finish with a try from prop Nahuel Chapparo in the final quarter.
