Mohammad Saifuddin was born on November 01, 1996, who is a Bangladeshi cricketer. An all-rounder, in December 2015 he has been named in Bangladesh's squad for the 2016 Under-19 ICC Cricket World Cup. He has started playing for Bangladesh's national cricket team in 2017. 

Saifuddin Uddin has made his Twenty20 debut on 13 November 2016 playing for Comilla Victorians in the 2016–17 Bangladesh Premier League. Saifuddin was the leading wicket-taker for Shinepukur Cricket Club in 2017–18 in Dhaka Premier Division Cricket League, with 14 dismissals in 10 matches.

In April 2018, Saifuddin scored his maiden century in first-class cricket, scoring 100 not out for East Zone in the final round of the 2017–18 Bangladesh Cricket League.

In October 2018, Saifuddin was named in the squad for the Comilla Victorians team, following the draft for the 2018–19 Bangladesh Premier League. He was the leading wicket-taker for Abahani Limited in the 2018–19 Dhaka Premier Division Cricket League tournament, with 25 dismissals in 13 matches.

Saifuddin has played for Minister Group Rajshahi in the 2020-21 Bangabandhu T20 Cup. In April 2017, Saifuddin was named in Bangladesh's Twenty20 International (T20I) squad for their series against Sri Lanka. He made his T20I debut for Bangladesh against Sri Lanka on 4 April 2017.

In October 2017, he was named in Bangladesh's One Day International (ODI) squad for their series against South Africa.[12] On 15 October 2017, he made his ODI debut against South Africa for Bangladesh at Kimberley.

In April 2019, Saifuddin was named in Bangladesh's squad for the 2019 Cricket World Cup. Saifuddin had taken 14 dismissals in 8 matches, additionally scoring 87 runs.

Source: Wikipedia