Ferguson was full of praise for the Wanderers boss for the work he has done in his four years in charge at the Reebok Stadium and the United manager is looking forward to a highly competitive game against the Trotters tonight.
"What Bolton Wanderers are proving is that they are a very good team, Sam Allardyce has a great ability to pick the right moment to get these players. It's an amazing job he has done with virtually no money. He has had to beg, steal and borrow, really" Ferguson told the Bolton Evening News.
The Old Trafford supremo was also in support that the former Notts County manager Allardyce should get more recognition for his acheivements at the club and joked if Big Sam was a foreign coach then he would get all the plaudits.
"It only ever seems to be the high-profile managers at the big clubs who get the credit, but, as Sam has said himself, if he was Sam Allardici, he would get better recognition."
Former Aberdeen manager Ferguson warned his side not to get complacent ahead of the clash and said that underestimating their neighbours would be a mistake.
"Bolton are a good side, The danger is underestimating them. If you do that you are in bother."