Saudi Arabia need to beat Mexico in the last match in the group on Wednesday to ensure qualification for the last 16, regardless of the outcome of the match between Poland and Argentina.
Last week's surprise 2-1 win over Argentina means victory over Mexico on Wednesday would take Saudi Arabia into the next round in Qatar and the Green Falcons' improved performances have come as a result of increased professionalism domestically.
"We had a crazy coach who gave us instructions and motivated us strongly during halftime," Saudi Arabia midfielder Abdel-Ilah al-Maliki told Al-Kass TV station after the win over Argentina.
Morocco coach Walid Regragui said Saudi Arabia's victory had given him belief.
The memory of 18 players killed in an air crash almost 20 years ago carried Zambia's current generation to their extraordinary African Nations Cup triumph, the team said on Monday.
Argentina are on a 36-match unbeaten run with top scorer and captain Messi playing his fifth and last World Cup in search of the elusive honour
Zambia, a team currently without a national stadium, have emerged from the shadows at the African Nations Cup to grab an unexpected place in Sunday's final against the Ivory Coast.
Captain Wendie Renard's header seven minutes from time earned France a dramatic 2-1 win over Brazil.
France's hopes of a winning start to their Women's World Cup campaign were thwarted by a hardworking Jamaican side in a 0-0 draw in the opening Group F clash at Sydney Football Stadium on Sunday.
Australia beat France 7-6 in a dramatic penalty shootout to reach the last four of the Women's World Cup for the first time.
Morocco are looking for an upset win over the European champions at the Luzhniki Stadium to realistically keep alive their interest in the tournament but mindful that the genius of the Portugal captain could send them towards an early exit.
Cristiano Ronaldo powered-home a fourth-minute header to give Portugal a 1-0 World Cup victory over Morocco that took them top of Group B on Wednesday and meant the unlucky North African side become the first to be eliminated from the tournament.
Spain, on four points, need a draw to guarantee their progress to the last 16 but will be looking to win and outscore Portugal, who face Iran, in case goal difference decides who finishes top.
European champions Portugal were let off the hook by Morocco's wasteful finishing and another Cristiano Ronaldo moment as they notched up a fortuitous victory in the World Cup on Wednesday. Yet, the reactions of the respective coaches suggested a different result.
World Cup hosts Brazil were made to work hard for a 2-0 win on Tuesday over a Zambia side whose coach quit last week and who were missing three players reportedly facing arrest in a bizarre club-versus-country row.
Morocco and Iran's hopes of making a mark at the World Cup before a ball has been kicked, and they head into their opening match in St Petersburg on Friday knowing defeat could likely mean an early exit.
Mbappe and Benzema inspire France to 2-0 win against Finland
The stability and pragmatism of Carlos Queiroz's seven-year reign has firmly established Iran's as Asia's number one team, but the nation will go to the World Cup hoping to advance for the first time to the knockout phase.
Quaison fires Sweden to extra-time World Cup playoff win over Czechs
A gritty India survived waves of attacks from Qatar to hold the reigning Asian champions to a goalless draw to steal an unexpected point from their away match of the FIFA World Cup Qualifiers.
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field