Pirates and Chiefs each have their own obstacles to overcome . Pirates coach Eric Tinkler has to deal with a slew of injured players and will probably register forward Tendai Ndoro for the CAF Confederation Cup to fill the void left by unavailable strikers.Kermit Erasmus withdrew from Saturday's match against Kaizer Chiefs with a hamstring injury and another striker, Thamsanqa Gabuza, was taken off in the first half of that clash after sustaining a knock.Injuries to defenders Rooi Mahamutsa and Thabo Matlaba are also a big concern for the coach ahead of the MTN8 clash with Ajax Cape Town tomorrow and the Confederation Cup match against Tunisian side CS Sfaxien at home on Saturday.Chiefs, on the other hand, have a problem stopping goals.Just a few days after agreeing in principle that he would rejoin Amakhosi, goalkeeper Itumeleng Khune watched as the Naturena club lost 4-3 on penalties to Pirates.Clearly, Amakhosi fans want to see him back in goal as soon as possible. But coach Steve Komphela could pull the "welcome" rug from under his feet at any time.Said Komphela: ''Itu is back and we welcome him back. [But] nobody has a God-given right to walk back into the team."Amakhosi begin the defence of their MTN8 title this week with a clash against Komphela's former side, Maritzburg United, at FNB Stadium on Wednesday. Their Absa Premiership campaign begins where it ended in glory last season - at Nelson Mandela Bay Stadium against Chippa United on Sunday.Komphela has a few injury concerns ahead of this week's games.''We are still waiting for [Daniel] Cardoso. Today Tsepo Masilela had some tightness on the hip."ALSO READ:Kermit Erasmus is the subject of a surprise transfer bid from Swedish league leaders IFK Gothenburg, who have made a formal offer to Orlando Pirates...