Cole brings plenty of experience to the table, having won 107 caps for England and made 682 appearances for a host of clubs including Arsenal, Chelsea and AS Roma.
"I'm delighted that we've been able to secure Ashley's services for the rest of the season," Lampard told Derby's website https://www.dcfc.co.uk/news/2019/01/derby-bolster-defensive-options-with-cole-signing. "He's a fantastic player, a quality left-back, and he also brings great experience to the dressing room.
"I've made my feelings known over the last couple of days just how highly I think of Ashley and I have no doubt whatsoever he will be a positive addition to our squad."
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Derby are currently in the final playoff position of sixth in the second-tier after beating Reading at home on Saturday.
(Reporting by Simon Jennings in Bengaluru; Editing by Ken Ferris)
