These two matches can make big changes on the ranking table because despite of worse performances than expected, Roma have only 3 points less than Juventus, and Lazio have the same points as Juventus but only 1 point less than Inter Milan.
If Lazio beats Inter Milan, they will get a second position from the opponent and if Roma beat Juventus, they will have same total points as the opponent. Lazio and Roma are considered as weaker teams than their opponents but if they can win, Serie A will be more exciting with big changes in positions of top clubs. If these matches end without winners, other clubs can flip top positions of Inter Milan, Juventus and Lazio so I bet that they will not want a draw this weekend.
Juventus and Lazio are very close, so it could be a cautious match, they won't want to lose their positions, maybe Juventus will try to win this match, but I can't understand yet how ambitious Motta is to fight for the Scudetto.
In this match, both of them do not want to lose points, but unlike Juventus who want to win at their home ground, because in the last five matches they have had bad results at least in the match against Lazio is a match that must get full points, even though the opponent that Juventus will face is Lazio who is in fourth place in the Serie A standings where if Lazio manages to steal points then it is likely that Juventus will be shifted from their challenger Lazio, so like it or not in that match is a match of life and still for the Juventus squad.