us the latest from tokyo, thanks very much. a few weeks from the start of the nfl season, players are already reporting to training camp and the nfl is doubling down on efforts to get more players vaccinated. this week we learned if a team experiences an outbreak among unvaccinated players, they may have to forfeit a game. and tonight, according to bleacher report, unvaccinated players may even be fined for breaking covid protocols. joining me now is the chief medical officer for the nfl, dr. alan sills. dr. sills, thank you for joining us. >> hey, thanks for having me. >> so the question is off the bat here, why go through this system of fines and forfeits, why not just mandate the vaccine for players like you do for coaches? >> all of our covid protocols are collectively bargained between the nfl and the nfl players association. so this is the agreement that those two groups have come to. we've elected not to mandate vaccines at this point. we're doing all that we can to educate and hopefully persuade