The 25-year-old has impressed as West Bromwich Albion have beaten Liverpool and Everton and secured a draw away at Tottenham Hotspur, and Yacob has admitted that he has been delighted with the club's start to the season.
Yacob told the Express & Star through an interpreter: "It was a great challenge to play against Liverpool in my first game, especially as I hadn't played for three or four months in Argentina.
"I realised that playing against Liverpool was a very difficult challenge in my first game, but I prepared well leading up to the game and I was very pleased that the result was a positive one.
"I was fully aware of the history, prestige and reputation of Liverpool, but we also need to take into account that West Brom have a very good history. We shouldn't be afraid of playing teams like Liverpool."
The Argentinian player signed for West Bromwich Albion from Racing Club during the summer.