But the on-loan midfielder, who also enjoyed a spell at Loftus Road earlier this season, insists the Baggies must focus on themselves and not what Warnock brings to the encounter.
"I played for Neil Warnock for over 18 months," Watson told Albion's official website.
"Until you've played under him then you don't realise what he's like but I had 18 fantastic months under him and played my best football.
"It's not ideal timing him being appointed QPR boss because he will get the lads up for it. But it's not about Neil Warnock or QPR, it's about West Bromwich Albion."
Source: Team Talk
Source: Team Talk