"We just have to keep going, keep our heads up and bounce back from this," the England international said ahead of Thursday's trip to face Zenit St Petersburg.
"We just have to stay positive and think about the next game now which is Zenit in the Europa League on Thursday night.
"We know the European game is important as well but I think every game is important to be honest.
"We will keep improving and make sure we keep going in the right direction.
"Hopefully we can improve, get some better results in the league and look to close that gap.
"We have to take each game as it comes and play well every week and hopefully we will get better results than last night."