India batter Shuman Gill is doubtful for the second Test against Australia, scheduled to begin December 6 in Adelaide. Gill had missed the series opener due to a thumb injury he picked up during the intra-squad practice match at the WACA Ground. Before the game at the Adelaide Oval, the Indian team will take on Australia Prime Minister's XI in a pink-ball practice match starting Saturday in Canberra. According to a report in the Times of India, Gill is certain to miss the match at the Manuka Oval, while his participation is Adelaide also remains an uncertainity.