Rafael da Silva believes Manchester United have suffered after making mistakes with their transfer strategy after Sir Alex Ferguson left.
The Brazilian full back won three Premier League titles during his seven years at Old Trafford under Ferguson and United have failed to secure another title since the legendary manager left in 2013.
Rafael, who is now at Lyon, believes one of the reasons his former club have struggled to compete is down to wrong investment.
“It has taken too long to get back on track. Two years should be enough to do that but now it’s been seven years.