In Pictures: Asian Champions League - matchweek 5

UAE's Al-Ain player Mohammed Salem (R) dribbles past Saudi's Al Hilal player Nawaf al-Abid during their AFC Champions League group D football match at Prince Faisal bin Fahad stadium in Riyadh, on April 23, 2013. AFP PHOTO / FAYEZ NURELDINE *** Local Caption *** 975947-01-08.jpg

Omar Abdulrahman looks to beat Al Hilan's Salem Al Dwasari and start an attack for Al Ain. Fayez Nureldine/AFP

Al Hilal's Wesley da Silva celebrates his goal against Al Ain. Fayez Nureldine/AFP

Al Hilal players celebrate their Asian Champions League victory over Al Ain at Prince Faisal bin Fahad stadium. Fayez Nureldine/AFP

Radomir Dalovic challenges Al Nasr's Ahmed Ali Moadhed. Karim Sahib/AFP

Hassan Mohamed is pressured off the ball during the AFC Champions League match with Sepahan by Farshid Talebi. Karim Sahib/AFP

Morimoto Takayuki looks to get the ball from Sepahan's Ahmadi Mohammdali. Karim Sahib/AFP

Xhevahir Sukaj celebrates his goal against Al Nasr in Dubai. Pic: AFP

Al Hilal's Yasser al-Qahtani challenges Al Ain's Fares Juma during their Asian Champions League match at Prince Faisal bin Fahad stadium in Riyadh. Fayez Nureldine/AFP

Nawaf Al Abid goes down under pressure from Fares Juma and Mohammed Ahmed. Fayez Nureldine/AFP

Mattias Delgado looks to get off a shot at the Tractor goal. Satish Kumar / The National

Jazira and Tractor Sazi players crowd the referee during their AFC Champions League tie. Satish Kumar / The National

Ali Mabkout looks for a way through the Tractor Sazi back line at the Mohammed Bin Zayed Stadium. Satish Kumar / The National

Lekhwiya's Nam Tae Hee finds his way to goal blocked by the Al Shabab back line. Karim Sahib/AFP

Madjid Bougherra is blocked by the Shabab defence. Karim Sahib/AFP

Edgar Bruno celebrates his goal aganst Lekhwiya in the AFC Champions LEague. Karim Sahib/AFP

Al Shabab coach Marcos Paqueta celebrates after his side's victory over Lekhwiya in the Asian Champions League. Fadi Al-Assaad/Reuters