Eventually, Cena was joined by an enforcer , Bull Buchanan , who was rechristened B-2 (also written B² and pronounced "B-Squared"). [ citation needed ] B-2 helped Cena kick off 2003 in victorious fashion with a win over Rikishi on the January 2 episode of SmackDown! and a win over Chavo Guerrero on the January 9 episode of SmackDown! . [ citation needed ] Both Cena and B-2 participated in the 2003 Royal Rumble match , but were unsuccessful.  Cena and B-2 failed to capture the WWE Tag Team Championship from Los Guerreros, resulting in Cena replacing B-2 with Red Dogg until he was sent to the Raw brand in February 2003.