Atletico Madrid aren't ready to give up Manchester United target David De Gea without a fight.
The Sun says Sir Alex Ferguson has stepped up the chase for De Gea.
The Manchester United chief's brother Martin attended Atletico's 2-2 draw at Espanyol on Sunday night to run the rule over goalkeeper De Gea.
Atletico are desperate to keep the 20-year-old. But the Spanish outfit are bracing themselves for an £18million end-of-season bid from United.
Fergie wants him to replace the soon-to-be retired No1 Edwin van der Sar.
