The Barons outshot the Griffins 40-32, the third consecutive game they've outshot Grand Rapids.
OKC owns a 138-103 overall edge in shots on goal, but the series is tied 2-2 heading into pivotal Game 5.
“We didn't have a lot of second-chance opportunities,” Green said. “If we're going to move on and win this series we've got to do a better job of battling for position in front, get some rebounds and do a better job of finishing as well.”
Nelson pointed out the Barons have either been tied or trailed 1-0 after one period in three of the four games other than an early 3-0 lead in Game 3. Nelson said it's critical to get off to a strong start on Sunday.
“As this game went on we got stronger,” Nelson said. “We need to carry that momentum over ... I have a feeling this series may go the distance. These are two strong teams that are very similar. It's going to be a battle.”
The Barons are 5-2 at home in the playoffs. They lost their playoff opener in the first-round series to Charlotte but had won five consecutive games at the Cox Center before losing Saturday night.
“It's still a decent position for us,” Green said. “If we win this home game (Sunday) then we just have to win one of two games on the road. We've been a pretty good road team all year so I would like our chances. But it's start with the game on Sunday.”