By Andrew Holleran Adam Thielen believes the NFL’s best wide receiver plays for the Minnesota Vikings. He doesn’t believe it’s himself, though. Thielen said following the Vikings’ win over the Saints in London that he believes his teammate, Justin Jefferson, is the league’s top wide receiver. Jefferson, who played collegiately at LSU, has been dominant since arriving in the National Football League a couple of years ago. Thielen made his opinion clear on Sunday. “I strongly believe he’s the best receiver in this league.” There are multiple options when it comes to picking the NFL’s best wide r…