Rodwell was a second-half substitute in the Wembley defeat.
He said: â€śWe knew it was going to be a tough game, especially on such a big pitch but we just werenâ€™t at the races today.
â€śWeâ€™re going to have to bounce back now.
â€śWe have a game on Tuesday and we want to make sure we finish in second place.â€ť
Asked if the speculation surrounding Manciniâ€™s future affected his side, former Everton midfielder Rodwell added: â€śNo. I donâ€™t know anything about it.â€ť