The phrase "to force a turnover" means to make the opposing team lose possession of the ball or lose control of the game in sports such as basketball, football, or soccer. Full definition
This defense failed to force a turnover in their final five games of the season, and the secondary has a lot of blame for that. (prideofdetroit.com)
The USC Trojans defense stepped up by forcing turnovers on Keith Price and got some touchdowns from Silas Redd and Matt Barkley to beat the Washington Huskies. (sbnation.com)
They did a good job of forcing turnovers during the regular season, but turned it over a couple times themselves in a quarterfinal win over Las Lomas - Walnut Creek. (sportstarsmag.com)