Hi fellow mate, I can easily resonate with your pain as I had encountered a similar situation. I, being an athlete, am very concerned and take care of my body as my most precious wealth. A few months back I had been diagnosed with a weak jawline and the doctor advised me to undergo a chin implantation, else constant strain on my jaw can lead to further complications in future. I was shattered down and was left numb on hearing this, as it would bring in a break to my athletic field. I finally had the chin implant three months back. Needless to say, the whole surgery had made my jawline much stronger than before and I could feel the difference in strength on my chins.