brian vickers
![](https://a.espncdn.com/media/motion/2016/0408/dm_160408_nascar_stewart_back_injury_news/dm_160408_nascar_stewart_back_injury_news.jpg?w=660&r=16%3A9)
'Anxious' Tony Stewart to undergo tests on broken back this month
Tony Stewart, saying some days are hard and some days easy as he remains sidelined while his back heals, will have a scan later this month to help determine when he can return.