SANTA CLARA – No greater 49ers' mystery exists between now and the season opener than whether George Kittle can play. Australia, here he comes? He's trying. He’s stacking g'days, if you will. He's literally counting them up – both ahead to that matchup against the Los Angeles Rams in Melbourne (Sept. 10, 5:35 p.m. PT) and backward to his Achilles repair exactly 20 weeks ago. "Realistic? Yeah, at this point," Kittle said Wednesday, after his biggest post-op running session.