James has revealed he has a shirt signed by his manager hanging over his bed.
"It's still at my parents' house today, hung over my bed.
"Frank Lampard's name is on it – I haven't told him so I'm not sure he knows, but he's definitely on there!"
James is happy to be plying his trade under a Stamford Bridge legend after returning to his boyhood club after a successful loan spell at Wigan.
The England Under-21 full-back revealed Lampard tried to bring him to Derby last January but it didn't materialise because he was content at the Latics.
He added: "He wanted to sign me for Derby last January, but it didn't go through. I was happy playing at Wigan.
"It was good to know he rated me, although that was at Championship level, and when you get a big job at a Premier League team, sometimes minds can change. But we spoke when he arrived and he said he wanted to give me a chance.
"I was injured, and he told me to come back in the best shape possible. I'm thankful that I've got to work with him."