Nyantakyi failed to sign the deal Paraguay have launched a scathing attack directed at the Ghana Football Association (GFA) for botching their proposed friendly.
The South American World Cup qualifying group leaders pulled out of the 19 November game after the GFA failed to confirm the game days after an understanding was reached.
With the days for the Fifa international date for friendlies fast approaching and Paraguay fearing that the GFA might not confirm the game, the South Americans opted to play Oman.
A Paraguay FA official told Ghanasocernet: "In the football business when you are too slow important events will pass you by.
"It was frustrating that days after we reached the agreement our Ghanaian counterparts were not forthcoming with a firm confirmation.
"We wanted to play Ghana badly because of the competition they will offer but we can't fold our hands and let this friendly date pass us so we opted to play Oman.
"I think the administrative slowness on the part of our Ghanaian friends has created this situation."
With the GFA fearing that they might incur the wrath of President John Agyekum Kuffuor if they fail to organise a game in Accra the football authorities managed to convince Tunisia to snub their proposed friendly with Benin on the same day.
Mr. Kuffuor is keen on a Black Stars game in Accra to help foster unity in Ghana ahead in the wake of the tension ahead of next month's general elections.
This might prompt Benin to report Tunisia to Fifa after they had long agreed to play the North Africans even though the Black Stars will provide them with stronger opposition.
Paraguay are also furious with the GFA overly delayed in confirming the game which led them opt to play Oman on the Fifa date for international friendlies.
For more Ghana football news visit www.ghanasoccernet.com