Boyd, a 28 year old striker, most recently played with Turkish side, Eskisehirspor, but he terminated his contract with the club in mid-December, and is currently without a club team.
Boyd spent a number of years playing with Scottish Premier League side, Rangers F.C, scoring 101 goals in 143 appearances during his five years with the club. He also spent time with Kilmarnock FC, Middlesbrough, and Nottingham Forest, before joining Eskisehirspor.
The Sky article also sites the Portland Timbers as a club interested in Boyd.
I'd honestly be surprised if Kansas City really are after Boyd, but as most of you know, I've been wrong before.