When a player on the opposing team makes a terrible mistake on a big play, the reaction for many sports fans is joy. Our team’s going to win! We rule, you stink!

But not every sports fan.

With a minute and a half left in an N.F.L. playoff game on Sunday, the Baltimore Ravens had scored a touchdown to close their deficit to the Buffalo Bills, bringing the score to 27-25. A 2-point conversion would tie the game.

“The whole season essentially comes down to this play,” said the play-by-play TV announcer, Jim Nantz.

The Ravens quarterback, Lamar Jackson, threw the ball to tight end Mark Andrews, who was at the goal line. He caught it … and he dropped it. To be fair, he seemed to slip as the ball reached him on the snowy field in Buffalo. But he dropped it.

The whole season did come down to that play. And the Ravens blew it, and lost the game. Their season was over.

But at least some Bills fans felt sympathy, even amid their triumph.

Andrews has Type 1 diabetes, and two Bills fans have set out to raise money for Breakthrough T1D, a charity supporting diabetes research and advocacy that he has supported. Their language sounds just a little different from the fiery speech some football fans like to use when discussing the game.