Jack Ross' play-off dilemma, Sunderland's Portsmouth hoodoo plus Charlton boss make surprise admission: League One play-off preview

Sunderland, Portsmouth, Charlton and Doncaster will hope to seal a place in the League One play-off final this week - but what can we expect?
Sunderland will take a 1-0 lead into the second leg of their League One play-off semi-final against Portsmouth.Sunderland will take a 1-0 lead into the second leg of their League One play-off semi-final against Portsmouth.
Sunderland will take a 1-0 lead into the second leg of their League One play-off semi-final against Portsmouth.

We take a closer look at the crucial second leg semi-final ties which will take place over the next two days: