The Team That Couldn't Lose — Matt Christopher

When inexperienced Phil Wayne takes over as coach of the Cayugans, Chip Chase figures that they're in for a losing season. But Phil surprises everyone by teaching the team a fantastic new play every week -- plays that help them win game after game. Then Phil admits to the boys that each week one play is mailed to him anonymously. Will Chip and his teammates discover who the mystery coach is before the season ends?