(Portland, OR)  --  The Trail Blazers will try to hold onto the number three seed in the Western Conference.  Portland's 13-game winning streak ended with a 115-111 loss Tuesday to the Rockets.  The Blazers face the Celtics tonight at the Moda Center.  Boston is 48-and-23 and beat Portland 97-96 on Super Bowl Sunday.  The Thunder, who are tied for fourth in the West, will host the Blazers on Sunday.  Portland has a 44-and-27 record.  Oklahoma City checks in with a 43-and-30 mark, the same as New Orleans.  San Antonio has won five straight and is looming with a 42-and-30 record.