"I don't think we will play a game," Sylvain Ndiaye told BBC Sport Online.
"The coach thinks we are too tired and we need a rest after the World Cup."
The chairman of Taiwan's National Council for Sport and Physical Fitness, Lin Teh-fu, signed the co-operation agreement with Senegal sports minister Joseph Ndong at Taiwan's Foreign Ministry.
Senegal is one of 28 countries which recognise Taiwan instead of
China, which views the island as part of its territory to be reunified since their split in 1949.
Chen is to donate 360 footballs and 100 pairs of gloves for goalkeepers in Senegal when he visits the capital, Dakar, later this month.
"Football will be one of the topics to be discussed when the president travels to Senegal," foreign ministry spokeswoman Chang Siao-yue said.
In his second trip to Africa, Chen will also visit Sao Tome and Principe, Malawi and Swaziland starting on 28 June.