You can consider two options:
Remove the pull bar knob , and add another tube with a slightly larger diameter over it. Bend this extension tube so that it can be comfortably reached by the player. You need to drill one or two holes and put bolts through both tubes to tightly secure the extension. In doing so, you will permanently altered the original pull bar (drilled holes)
Same as above but use stainless steel clamps for plumbing hoses instead of drilling holes. At the portion where the extension tube comes in contact with the original bar, use a grinder to cut out a slit on the extension tube. This way when the clamps are tightened, the metal of the extension tube will compress and grabbed tightly against the original pull bar.
Remove the original pull bar and custom fabricate a tube of similar diameter, bend to shape ( at an angle) to allow easy reach to the player. Paint or even take it to a shop to have it chromed.