The phrase "signal callers" refers to the quarterbacks in American football who communicate or give instructions to the rest of the team during a play. Full definition
After losing starting quarterback Teddy Bridgewater for the 2016 season due to a severe knee injury, many analysts expected that the Minnesota Vikings would look to acquire a veteran signal caller in free agency to... (sportsinsights.com)
-- Tampa Bay Buccaneers Josh McCown is out indefinitely with a thumb injury and will be replaced next week by second year signal caller Mike Glennon. (sportsinsights.com)
The experts weighed in, and it looks as if it could be a long day for rookie signal caller Blake Bortles and his offense. (sbnation.com)