It is time for our seasonal reminder: the first competitive fixture of a new season is statistically more akin to a lottery than a predictable event; in evidence, we have Lincoln Red Imps and Artmedia Bratislav, two teams who won as significant underdogs against Celtic.
Season 2019-20 starts tonight in a field in Bosnia, where local champions, Sarajevo, attempt to record what would be one of the most significant victories in their history.
Neil Lennon has some decisions to make, particularly in defence, where Christopher Jullien and Boli Mbombo could make their debuts, the latter in the absence of Kieran Tierney, who is still recovering from an operation in May.
The heat has relented in Sarajevo and across Europe from the heights recorded last week, so it will be more like a balmy Glasgow evening than an oven for the Celtic players. Importantly, Neil Lennon has been through a few experiences like this. He will remember the pain of defeats European competition at the hands of Utrecht (4-0) and Braga (3-0) in his first season in charge of Celtic.
Expect the manager and the team to both be ready this time.