Dyer has made just one substitute appearance for Swansea this season and has moved away after six years there since singing from Southampton in the summer of 2009 for a £400,000 fee.
Now 27, he made an eleventh hour move to Leicester and will be with them for the remainder of the season.
It's almost ten years since he joined us on loan. He'd featured in just three Southampton games when Harry Redknapp allowed us to take him on loan and he scored twice for us in five appearances before he was called back by the Saints following Redknapp's departure.
He played only occasionally for them and had a loan at Sheffield United but clinched his move to Swansea. Just a year ago, he scored the only goal of the game there in our first away game of the season, but he's lost that regular place under Garry Monk.
With Andre Ayew having arrived in the summer, coupled with the form of Jefferson Montero, he's slipped down the pecking order and has jumped at the chance for some regular football, becoming Leicester's seventh and final signing of this transfer window.