Swansea City fans could be forgiven for thinking that the points may be in the bag after their visitors on Saturday were crushed 6-0 at home during midweek.
But thoughts like that could not be further from the truth as Rangel explained to the Western Mail “It was a real bad day for them in midweek
“They will be hurt after the Ipswich result but they are a good side who keep the ball very well, so we can’t underestimate them.
“It won’t be easy.
“We knew at the beginning of the season our home games were going to be important,” said Rangel. “At this stage of the season teams are fighting because sides want to stay at the top and teams are not safe towards the bottom.
“We have to try and take advantage against Doncaster because they are a side who are mid-table and don’t have much to play for. The atmosphere is a lot better after Middlesbrough because everyone knew what it would have meant if we had lost that game.
“Confidence can change quickly so we know we have to back up the Middlesbrough result with a win at home."