Let's not exaggerate. 
However, I will admit I was wrong. I had my doubts, and he has proven to be a very solid/reliable/dependable acquisition.
However, I will admit I was wrong. I had my doubts, and he has proven to be a very solid/reliable/dependable acquisition.
You were definitely wrong/incorrect/erroneous/mistaken about Blaise Matuidi's abilities/strengths/skills/talents/aptitude
