Only three NFL teams remain unbeaten after week four, with the Kansas City Chiefs, San Francisco 49ers and Minnesota Vikings all improving to 4-0. The Chiefs edged the Las Vegas Raiders 30-27, while the 49ers beat the Denver Broncos 24-14 and the Vikings saw off the Miami Dolphins 15-10. The New England Patriots and Los Angeles Rams also claimed notable road wins.
Chiefs, 49ers and Vikings stay unbeaten in NFL week four
Source: BBC