The case
The table gap is small: CS Constantine are 5th on 4 points and US Biskra are 14th on 2 points, and both have a goal difference of -1 after three games. The price of 1.67 on the hosts implies about 60%, which would fit a much larger gap than two points and a difference in goal difference that does not exist. Both sides draw often. Each has two draws in its last five, and two of the last five meetings between them ended 1-1. CS Constantine's home form is W D, and the league averages 2.3 goals per match over 21 games, so low-scoring games are common. CS Constantine have conceded 11 goals in their last five, so a clean sheet and a comfortable win is not the default. US Biskra have scored only 3 in five, so they may struggle to use that weakness, which keeps a one-goal margin or a level game likelier than the home price suggests. We make the draw 32%, while the price of 3.25 implies 31% before the bookmaker's margin (its built-in profit), a gap of about one point and not a real edge.
The risks
The hosts have won at home, and US Biskra have lost three of their last five. CS Constantine have scored 8 goals in five, and if that continues, a home win at 1.67 is a reasonable result and this tip would be wrong. A red-card suspension is listed for CS Constantine, but there is no lineup data, so we cannot size the loss. Lineups are not yet announced, and a weakened US Biskra side would push the result towards the hosts.
Tips are opinions, not guarantees. Only bet what you can afford to lose.