Ertel made 4 of 6 3-pointers. He added seven assists and six rebounds.
Travis Munnings had 17 points and seven rebounds for Louisiana-Monroe (18-14). Daishon Smith added 13 points. JD Williams had six rebounds and three blocks for Louisiana-Monroe.
The Chanticleers' 29.5 field goal percentage represented the worst mark by a Louisiana-Monroe opponent this season. Coastal Carolina scored 19 second-half points, a season low for the team.
Tommy Burton had 15 points and eight rebounds for the Chanticleers (15-16). Tyrell Gumbs-Frater added 12 points. Zac Cuthbertson had 11 rebounds.
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