The 2021 Test series between Bangladesh vs Sri Lanka has stirred cricket fans' interest as Bangladesh are desperate to win the contest. Bangladesh will face a significant challenge in facing Sri Lanka in their own backyard, which is why we expect captain Mominul to show his true leadership abilities in this series. But, senior players will have to take on more responsibility if Bangladesh is to do well in the contest. Besides, Bangladesh will badly want to get off the mark in the ICC Test Championship points table. This article discusses the Test rankings prediction of Bangladesh and Sri Lanka series 2021.  Test Rankings Scenario: Bangladesh vs Sri Lanka Series The first of two matches Test series between Bangladesh and Sri Lanka will be played from April 21 to April 25 and the second Test will begin from April 29. Both the matches will take place at the Pallekele International Cricket Stadium.  Read: IPL 2021: The best IPL playing XI 2021 from each team  Match Venue Time (Bangladesh Standard Time) 1st Test Pallekele International Cricket Stadium, Kandy 10.30 AM 2nd Test Pallekele International Cricket Stadium, Kandy 10.30 AM Sri Lanka's last Test series against the Windies ended in a 0-0 draw in March. On the other hand, Bangladesh were defeated 2-0 by the Windies in their last Test series at home in February. This series isn't really important for the two teams if we only consider ICC Test Championship. But both Sri Lanka and Bangladesh will want to win the series in order to strengthen their Test positions. Sri Lanka will drop one place in the ICC Test rankings if they lose the series. Bangladesh's ranking will stay unchanged if they win the series, but their rating points will improve. Sri Lanka are currently ranked seventh in the ICC rankings, with 83 points. While Bangladesh are in the ninth position with 51 points. Sri Lanka will gain one point if they can whitewash Bangladesh in this series. On the other side, Bangladesh would gain 11 points if they can banglawash Sri Lanka.Taking a look at how the ICC's Test rankings prediction projects the series-ending ranking scenario.  Read: Bangladesh vs Sri Lanka: Top five memorable performances in Test Cricket Probable ICC Test rankings for Bangladesh and Sri Lanka Bangladesh win by 1-0 Sri Lanka will fall one place in the rankings if Bangladesh win the series 1-0. They will drop to eighth place after losing 5 points, while West Indies will rise to seventh place. On the other hand, the ranking of Bangladesh will remain unchanged. However, Bangladesh's rating points will be increased by 9 points, bringing the total to 60.  Bangladesh win by 2-0 If Bangladesh win the series 2-0, Sri Lanka will drop one spot in the rankings. They will drop to the eighth position after losing six points, while West Indies will climb to seventh. On the other hand, Bangladesh will maintain its current position. But, Bangladesh's rating points will be raised 11 points to 62. Series draw 1-1 / 0-0 Sri Lanka will slip three points to eighth place if the series ends 1-1. While Bangladesh will get 4 points and a 55-point rating. And if the series ends in a 0-0 draw, the outcome would be the same.  Sri Lanka win by 1-0 If Sri Lanka win the series 1-0, the team's ranking and rating points will remain unchanged. Both teams will be in the same position as they were before.  Sri Lanka win by 2-0 Neither team's ranking will change if Sri Lanka win the series 2-0. However, Sri Lanka's rating point will rise by one point to 84, while Bangladesh's will fall by two points to 49.  Read: Bangladesh vs Sri Lanka: Recap of the Key Test Records  Bottom Line   While the ICC Test ranking prediction doesn't quite excite Bangladesh cricket fans, winning a match in the series would be a massive morale booster for the squad, as they have only won one of their previous nine matches. Besides, Bangladesh will get back in rhythm in the Test format if they win the series against Sri Lanka. The series is very significant in this regard. Read: Who will win the IPL 2021? The favorites, underdogs, and outsiders