Joe Root admits his reaction to being dismissed on day one of the fifth Test between England and India in Chennai was "a bit childish".
After the early losses of Keaton Jennings and Alastair Cook, Root and Moeen Ali built a 146-run partnership for the third wicket that put England back on the right track.
Their stand was eventually broken when Root was dismissed on 88 following a successful review by India captain Virat Kohli, UltraEdge showing a spike from an under-edge as he attempted to sweep Ravindra Jadeja.
A water bottle and the boundary rope were kicked in frustration as the Yorkshireman made his way off the field, and he confessed his irritation got the better of him.
"I was convinced I did not hit it. The technology suggests otherwise but it is bitterly disappointing when you are convinced that there was nothing," said Root.
"Look at the keeper's reaction. He was not interested either. Kohli just went with his gut and it worked out. It is bitterly disappointing and frustrating.
"The bat is not near the floor, so I have to take it on the chin. I might have got a fine edge on it but I did not hear a noise, did not feel anything on the bat. It could be one that bypassed me and is genuinely out.
"I was probably a bit childish with my reaction as I walked off, but playing international cricket you are going to be disappointed when you feel that you have been hard done by."
Root's annoyance was perhaps piqued by the fact he failed to reach triple figures after surpassing 50 for the ninth time in Test matches across 2016.
"It's been a theme throughout the year, something to ask Santa for and hopefully we can sort it out for next year," he added.
"I would be lying if I said I am not frustrated about it. But my game is in good order, I am playing well.
"It is something to keep in the back of my mind but it is not going to change the way I am playing."