Isuru Udana's fifer paved the way for Trinbago Knight Riders' comfortable six-wicket win over Barbados Royals.
Earlier in the month, the former all-rounder had suffered an aortic dissection, which is a tear in the body's main artery.
Joe Root's 121 at Headingley was his sixth ton in 11 appearances since the turn of the year, equalling an England record previously shared by Denis Compton and Michael Vaughan.
The left-arm quick has featured in 38 T20s and has taken 44 wickets with a bowling average of 20.06.
Shamsi, 31, represents The Titans in South Africa's domestic cricket, and made his international debut for the Proteas in 2017.
Dawid Malan played the last of his 15 Tests back in 2018, making the opportunity all the more significant in nature.
As per reports, the players have fallen out with the former Australian cricketer over his tough training regimes.
Shaheen Afridi picked up 6/51 and Pakistan held the advantage against West Indies in Jamaica.
Pakistan are on top after the end of day 3 of the second Jamaica Test against West Indies thanks to Fawad Alam's century.
Liam Livingstone's dismissal marked the end of Birmingham Phoenix's resistance, enabling Southern Brave to pull off a sublime triumph.