What is foreshadowing about Ishmael’s childhood game? (chapter 12)

Beah recalls childhood games playing soccer:

The soccer games reminded me of the league matches I used to play in when my family
first moved to the mining town of Mogbwemo. In particular, I remembered a final match that
my team, which consisted of Junior and some friends, won.

Beah watches children play in the camp but distances himself from these games because he knows that bad things are coming.