Tonga, which has now won four games in a row, goes up against the Englishmen at Mt Smart Stadium in Auckland at 6pm New Zealand time.
England defeated Papua New Guinea 36-6 last Sunday, the day after the Mate Ma’a Tonga defeated Lebanon 24-22.
“We need our players to focus on training for their games and getting adequate rest needed for their best performance,” said Sika, who is also Tonga’s Minister for Tourism.