Sunderland sign defender Papy Djilobodji from Chelsea.
Gernot Rohr previously coached Gabon, Niger and Burkina Faso.
Andre Ayew scored 12 goals in 34 games for Swansea in 2015-16.
Ogenyi Onazi joins Trabzonspor from Lazio 'to clear my head'.
Ghana midfielder Kevin-Prince Boateng joins Las Palmas.
Chelsea winger Mohamed Salah signs for Roma on permanent deal.
Jorge Costa had been in charge of Gabon since 2014.
Idrissa Gueye has won 32 caps for Senegal.
Mamelodi Sundowns reach the Champions League semi-final
Champions Etoile du Sahel and Medeama of Ghana secured victories.
Group A
DAY 01
Match 02
Korea Republic vs Czech Republic 2:1
Goals Korea Republic
I. Hwang (67')
O. Hyeon-gyu (80')
Assist Korea Republic
I. Hwang (80')
Goal Czechia
L. Krejčí (59')
Assist Czechia
V. Coufal (59')
Czech 
Korea Republic