Mark Hughes insists Stoke will not be looking to make any major additions in the January transfer window.
QPR boss Harry Redknapp insists he has no concerns over the prospect of losing Charlie Austin in the January transfer window.
The 29-year-old will be reunited with Millers manager Steve Evans, who was his boss at Crawley.
"A lot of hard work has gone into getting Matt Tubbs here, I am delighted," Evans told the club website.
"At the end of last season and before then I highlighted to my chairman he was my first-choice striker to be recruited, we have managed to get that done and accordingly I thank my chairman Tony Stewart."