The next day , the players that were left merged ( combined ) into one tribe , which they named `` Chaboga Mogo '' ( a combination of the old tribe names ) , and Rob M. decided to vote off Lex , even though he was breaking his promise . The next day , the remaining players were merged under the tribe name Chaboga Mogo ( a combination of the former tribe names Chapera , Saboga , and Mogo Mogo ) and Rob found it necessary to vote off Lex , much to the anger of the latter for breaking the deal .