Paraguay begin their World Cup Group F campaign against Italy in Cape Town on Monday, and later meet New Zealand and Slovakia.
Cabanas, who led Paraguay through a strong qualifying series to a World Cup berth, was lucky to survive the shooting at a Mexico City night club and has been at a rehabilitation centre in Argentina, where he has started to play football again.
"It is a very sensitive issue for all of us in Paraguay. The players have been in touch with Cabanas and of course he is a great inspiration for us," Martino told reporters.
"He would have been here had he not suffered the accident. He is recovering, it is a very important stage in his recovery now. His development is favourable and we hope to find him looking very well when we get back," he added.
"We have three matches ahead of us and we will play for Salvador."
Cabanas's doctor, Lisandro Olmos, told Reuters last month he beat the odds to survive the shooting and continues to surprise as he recovers.
