The Leeds United boss comes up against a familiar face tomorrow.
Monk and Rosler were previously team-mates after spending time together at Southampton at opposite ends of their playing careers.
The pair will be reunited on Wednesday when Leeds visit Rosler's Fleetwood Town in a first-round League Cup clash at Highbury.
The German knows a thing or two about the pressures of being Leeds boss, having been sacked by owner Massimo Cellino last October after just 12 games in charge.
Monk replaced Rosler's axed successor Steve Evans this summer but the 38-year-old says that he never spoke with his former colleague about the position.
Asked by LUTV if he spoke to Rosler about the Leeds job before taking it, Monk responded: "No I like to make my own judgements. I don't want to be clouded by anything, so I came here without speaking to anyone to make my own mind up. I think that's the best way to work."
Monk will be desperate for a victory tomorrow. His first Championship game in charge of Leeds ended in bitter disappointment on Sunday when the Whites went down 3-0 at Queens Park Rangers.
Tomorrow's result will not directly affect Leeds' promotion hopes, but another defeat on Saturday at home to Birmingham City will likely leave them six points behind at least one team.