Wesley Sneijder saved Mourinho's record.
Wesley Sneijder and Walter Samuel scored late goals as defending champions Inter Milan twice came from behind to avoid a shock Serie A loss to Siena in the top-versus-bottom clash at the San Siro.
Massimo Maccarone's swerving effort fired Siena into an 18th-minute lead, but Inter were level six minutes later when Sneijder found Diego Milito who drilled in. Sneijder curled in a second from a 36th-minute free-kick but Siena responded immediately as Albin Ekdal ghosted in at the back post to drill in a leveller.
Maccarone scored his second after 65 minutes but Sneijder scored his second free-kick after 88 minutes and Samuel hit a stoppage-time winner as Inter and Jose Mourinho's long unbeaten home records remained intact. Siena had Cribari sent off as their frustrations boiled over after the final whistle.
Mourinho was staring at a first home loss in the league for almost eight years - he was unbeaten in his final season at Porto, throughout his time at Chelsea and in his first season in charge of Inter - before the late interventions of Sneijder and Samuel's winner.