AI picks BTTS Yes at 1.90 — +10.0% better than the market.
Sporting CP vs Arsenal looks more competitive than a standard away-favorite line might suggest. Arsenal arrive in outstanding form, defend very well and carry real threat both in Europe and domestically, so they deserve to start in front. But Sporting are extremely dangerous at home, play with confidence in the final third and have enough quality to make this uncomfortable for long spells.
The most likely match script is Arsenal controlling more of the overall balance while Sporting still create meaningful moments of their own. That keeps the visitors as the likelier winners, but not in a way that rules out resistance from the home side. Goals should be on the table, and both teams have a realistic path to score in what projects as a high-level, open enough European tie.