"Very unlikely," Reds pitching coach Bryan Price said on Wednesday.
Broxton, who had a flexor mass strain in his right elbow, doesn't have a timetable for a return as of yet. He just started throwing lightly on Tuesday after being shut down.
"It needed some time to settle down," Price said. "It was his first time playing catch yesterday. It went fine."
In 29 appearances this season, Broxton is 2-2 with a 4.33 ERA. His throwing program will begin in earnest on Friday.
"He's not pain-free yet," head trainer Paul Lessard said. "We've been doing strengthening for the last five or six days. The range of motion is back, and his strength has gotten a lot better."
Mark Sheldon is a reporter for MLB.com. Read his blog, Mark My Word, and follow him on Twitter @m_sheldon. This story was not subject to the approval of Major League Baseball or its clubs.