With Japan and Senegal posting an identical goal-difference and goal scored, the latter progressed via the Fair Play rule, having accumulated less yellow cards than the African nation.
Colombia, who finished as group winners with six points will face a last-16 match against the runners-up in Group G where England and Belgium battle for supremacy later on Thursday.
Senegal's forward Ismaila Sarr (L) vies for the ball with Colombia's defender Johan Mojica during the Russian Federation 2018 World Cup Group H football match between Senegal and Colombia at the Samara Arena in Samara on June 28, 2018.
Intervention from VAR saw referee Milorad Mazic overturn his original decision, with replays having shown that Sanchez had expertly taken the ball off the toe of Sadio Mane as the Liverpool winger ran through on goal.
Carlos Sanchez returned to the Colombia line-up after suspension. Given the high-stakes nature of Senegal vs. Colombia, we're picking a draw between these two cautious and capable sides.
Mane slipped while taking a free-kick, yellow-shirted fans afforded further cheer as news from Volgograd came in, and Rodriguez, back pitchside, turned motivator as a Salif Sane slice proved a Senegal let-off.
Colombia's football association has said the players who faced Poland focused on "regenerative" work on Monday.
Senegal and Colombia have faced each other just once before, in a friendly in May 2014, with Colombia taking a 2-0 lead into half-time, only to concede two goals in the second half. The Barcelona defender won seven aerial duels, made the same number of clearances and had a 91 per cent pass completion rate, too.