Nigeria, Dec. 2 -- Pep Guardiola has had an incredibly successful career as a football manager, achieving a level of job security most can only dream of.

In his 16 seasons, he's never been fired, defying the common saying that all managers eventually get sacked. The late Howard Wilkinson said, "There are only two types of managers. Those who've been sacked and those who will be sacked in the future."

Has Guardiola reached that future? He famously said as Barcelona manager, "The day I see the light go out of my players' eyes, I'll know it's time to go."

After four consecutive league losses and no win in seven in all competitions, has the light gone out of his players' eyes as Guardiola finds himself in unfamiliar territory-facing critic...