The pair missed the 1-1 draw with Central Coast Mariners last weekend due to injury and are no chance of taking on the Reds according to coach Vitezslav Lavicka.
''We still have a special training program [and they] will keep going with their treatment. For this game, they are 100 per cent unavailable,'' the Cezch tactician said.
''They need more time to be ready. It's unlucky for them, for us, but we need two 100-per-cent-fit players and they are still not [ready] in this moment.''
The Sky Blues currently sit at the foot of the A-League table after four rounds but Lavicka is confident the results will come for his side.
''I am always confident because I am a positive-thinking person,'' he added. ''We have had trouble in the early season but I believe we are able to play to good football and win this week. We respect our opponent because they have had a good start and played very good football - we saw a couple of games and their victory against North Queensland last weekend - but we have a strong desire to win this weekend.''