After a 0-0 draw with Pohang Steelers at home last week, the Mariners have begun their ACL group stage well but would love three points against the Chinese club who were defeated 1-0 by Japanese outfit Kawasaki Frontale.
McKinna believes a victory is an achievable goal.
"If we get a draw away from home we'd be happy, but we've come here expecting and thinking that we can win," said McKinna.
"We have to believe that we can come here and get a result - we think we can come away with a win, but realistically, if we came away with a draw, it's still a good result and we've done a good job.
"The Stadium will provide a great backdrop and great atmosphere here and we're looking forward to it.
"We've got a copy of Tianjin's game from last Wednesday night and we'll obviously go through that, but they're going to be at home, in front of a big crowd and wanting to prove that they're a good team," added McKinna.
"We know that we're in for a very hard game and that we'll have to be at the top of our game to get a result.
"Coming here is a different world - a city of 11 million people and a world-class Stadium like this with a huge crowd, it's certainly going to be a bit different from the sunny Central Coast."