Seriously. Sponsors do not get to influence the shirt designs. It just does not happen. If you need proof of this, take a look at Liverpool's frankly eye-bleedingly awful away and third kits over the last couple of seasons, as well as Newcastle United's bizarre inability to resist putting extra black sections on a black and white striped kit that should be incredibly simple to design, and then there's Manchester United's abysmal tea towel kits as well as the ugly-as-sin chevron designs. Not to mention that you can be sure that if this happened, you'd get at least one or two kits where the designs of the kit were made to replicate the sponsor's logo, but I can't think of a single time that that has ever happened.
Honestly, if sponsors tried to introduce a clause into the sponsorship saying that they get to design the kits, their execs would find themselves parked on their backsides in the car park outside the stadium before they knew what hit them. Football clubs have a high enough sense of self-importance already. They don't like being dictated to on what they consider to be "their things" to control.
