As Jeff wrote below, Jason Babin’s MRI exam for his calf strain is delayed because he needs to wait for a swallowed thermometer to pass through his system. It’s worth mentioning that he did not swallow an actual, standard thermometer that the layman would use to measure a common cold.
The thermometer is a pill (see above photo) that the players swallow. When it is in their gut, a trainer comes from behind with a measuring device that can gauge their core temperature. About 25 players on the Eagles used it on Saturday. Babin happened to be one of them.
The team must wait for the pill to pass through the player’s system before the player can undergo an MRI. There have been some questions on Twitter about the process, so hopefully that clears up any ambiguity.