The Gers manager was speaking as the winger failed to make the matchday squad and as Matondo continues to be a bit-part player since his reported £2m summer move from Schalke 04.
The situation surrounding Rabbi Matondo was made worse by rumours circulating online that the winger was facing disciplinary action from the Ibrox hierarchy.
Heading into the match, leading Rangers fan media Heart & Hand had already moved to quash these rumours by quoting the club as saying the allegations were “not true”.
Specifically, these allegedly related to problems with Matondo’s timekeeping at the club.
Rangers winger Rabbi Matondo Dundee United absence explained
Rangers manager Giovanni van Bronckhorst then discussed the situation surrounding Rabbi Matondo at full-time and revealed the ex-Man City talent wasn’t involved at all because the Ibrox side had to put up a squad of 20 rather than 23 for the match with the Arabs.
“Before the three defeats we had players scoring from midfield,” said van Bronckhorst.
“Tom Lawrence is one of the players who has started the season really well as well. Unfortunately we don’t have him.
“We have to have more players to be able to score. Ryan Kent is a player who is also very dangerous, but also needs to improve his scoring. He knows that he needs to improve that.
“Rabbi (Matondo) is a player who can deliver that. He is one of the players I didn’t pick today because I had to go from 23 to 20, which is always difficult for a manager to do so.
“We will just go on with the squad we have, improve them and make sure we develop as a team in the coming games.”