Look at the below visualisation of the situation in FIFA 2010 World Cup’s Group C before last phase of the group stage. Each square of the drawing represents different result of the both last matches in group C (England vs. Slovenia and USA vs. Algeria) and colors on the drawing tell us who will be qualified to the next round.
Below drawing of visual analysis comes from : FIFA 2010 Group C Analysis
Black, blue and gray squares indicate that England will be qualified. As you can see, if they win against Slovenia a least 1:0, they will be qualified to the next round. There are also some cases in which England will advance, if they draw the match (black squares in the middle of the drawing). There are also three pairs of interesting results (USA – Algeria 2:2,1:1,0:0 and England – Slovenia 1:1,2:2,3:3) marked by the black diamonds. In this case both teams have same number of points (3), same number of goals (3,4 or 5 depending on the result) and same number of goals scored in match between USA and England. Due to the terms of FIFA World Cup, drawing of lots will be needed to find the winner.