 Complete the following phrase:  The draw for the group stage was held on 27 April 2014 at Cairo, Egypt. The 21 teams ranked 121 and the seven winners of the second round played in this round. Teams ranked 17 were seeded into Pot 1, teams ranked 814 were seeded into Pot 2, teams ranked 1521 were seeded into Pot 3, and the seven winners of the second round were seeded into Pot 4. The 28 teams were drawn into seven groups of four, with each group containing one team from each pot. Each group was played on a home-and-away round-robin basis. The winners and runners-up of each group, plus the best third-placed team, qualified for the 