Cesar Azpilicueta has been one of the most consistent performers for Chelsea over recent years, but his latest form has left a lot to be desired.
His position looks under threat as Lampard has shown a willingness to play his young players and Reece James has looked very promising in his outings so far.
READ MORE: Video: Ajax stun Stamford Bridge after two minutes as Promes punishes Chelsea with free kick
The Spaniard was at fault again as he was caught ball-watching and allowed Quincy Promes to sneak in behind him to nod Ajax back in front:
Chelsea have had some very promising results recently and it looks like Lampard has the team playing how he wants them to, but they are struggling against Ajax tonight.