Blackwell also confirmed he is not the only player he is attempting to sign this week.
The former Preston midfielder will move to Leeds for a fee of around £500k based on appearances and success.
Leeds have been after the 30-year-old former Baggies captain since the summer and the player himself always wanted to move to Leeds.
"I need to add that bit of quality and I think Saturday showed exactly why I'm trying to do what I'm trying to do," said Blackwell.
"I'm after two or three other players who are for me the finished articles," he added on United's official website.
The former Preston midfielder will move to Leeds for a fee of around £500k based on appearances and success.
Leeds have been after the 30-year-old former Baggies captain since the summer and the player himself always wanted to move to Leeds.
"I need to add that bit of quality and I think Saturday showed exactly why I'm trying to do what I'm trying to do," said Blackwell.
"I'm after two or three other players who are for me the finished articles," he added on United's official website.