For the most part, the Dogue De Bordeaux or French Mastiff is a very self-assured pup with a very serious face. Although this breed has been around for a very long time, it rose to prominence in the public thanks to the Tom Hanks' movie Turner & Hooch. They are an excellent companion who will stop at nothing to protect his family. Overall, they have a very calm nature, which should make them easy to groom, but on occasion, they can be stubborn and excitable making grooming a challenge.
The good news is that your pup has a short coat that is very easy to groom and only needs to be brushed on a weekly basis to remove dirt and debris. At the same time, you need to carefully wipe out the countless folds and wrinkles to help prevent skin infections.
Just because your Dogue De Bordeaux gets nervous around the grooming tools is no reason to waste money taking him to the puppy parlor. What you really need to do is spend as much time as you can working with him and reassuring him so that by the time you break out the grooming tools, he has literally no interest in what's going on.