The Minnesota Vikings announced they have signed CB Kelvin Joseph to the practice squad ... Miami later waived Joseph and he opted to sign with the Seahawks practice squad shortly after.

But if you watch [tomtektest’s] recent video, you’ll learn they are really Kelvin probes. Kelvin probes are a special type of probe for making accurate resistance measurements using four wires ...

The team has announced that they have signed cornerback Kelvin Joseph to the practice squad. Joseph was a second-round pick (#44 overall) of the Dallas Cowboys in the 2021 NFL Draft out of Kentucky.