The celebration dance that Jason Sudeikis does, as Ted Lasso, with his team is the same dance he does in the SNL segment "What's Up With That".
This was Jason Sudeikis' winning submission for the 2021 Emmy for Outstanding Lead Actor in a Comedy Series.
The character of Sam Obisanya was originally written to be of Ghanaian descent. This was changed when Toheeb Jimoh was cast in the role (the actor is of Nigerian descent).
While on the phone with his family Ted is wearing a shirt with the words "Joe Arthur Gatestack KC BBQ". This is a reference to KC Joe's, Arthur Bryant's, Gates BBQ, and Jack Stack, which are 4 of the most popular BBQ restaurants in Kansas City, which is known for its world class BBQ.
On the plane, Ted is reading "The Dharma Bums" by Jack Kerouac and Coach Beard is reading "Inverting The Pyramid: The History of Soccer Tactics" by Jonathan Wilson.