New Delhi, Dec. 1 -- In the high-stakes world of professional football, where every snap can swing momentum and fortunes, the National Football League's disciplinary arm reached deep into the Kansas City Chiefs' locker room this week. Two key players, star cornerback Trent McDuffie and promising offensive tackle Kingsley Suamataia, have been slapped with significant fines for infractions that went uncalled during their gritty overtime victory over the Indianapolis Colts on November 27. The penalties, totaling more than $19,000, underscore the league's unyielding focus on player safety amid a season rife with controversial hits and heated rivalries.

McDuffie, a two-time All-Pro and cornerstone of the Chiefs' vaunted secondary, drew the ir...