Striker Garry O'Connor is set to make his Barnsley debut following his recent arrival on loan from Birmingham.Midfielder Hugo Colace, who missed Saturday's defeat at Norwich, has been struggling with a calf problem and could miss out again. [LNB]Leeds are without goalkeeper Kasper Schmeichel, who has a foot injury. [LNB]Lloyd Sam has been nursing an ankle strain, but the winger featured against Watford on Saturday and could be involved again. [LNB][LNB] MATCH PREVIEW Leeds face the first of three Yorkshire derbies in the space of a week, and make the short trip to Oakwell hoping to build on their impressive return to the Championship, while Barnsley will be looking to atone for the defensive lapses that cost them at the weekend. [LNB]Leading 1-0 at Norwich with 19 minutes remaining, the Tykes ended up with nothing after a Stephen Foster own goal and a late Canaries winner. A victory would have been Barnsley's first at Carrow Road for 73 years. [LNB]Simon Grayson's Leeds side, on the other hand, came from behind to beat Swansea and have every reason to be full of confidence after going four matches without defeat since losing on the opening day. [LNB]Luciano Becchio's second-half winner against the Swans - his third goal of the season - means Leeds, who face Doncaster on Friday and Sheffield United next week, are sixth in the table after their first five matches. [LNB][LNB] MATCH FACTS Head-to-head[LNB]• These clubs have played 50 competitive matches against each other. Leeds have won 20 of them and Barnsley 15, with 15 draws. All but two of the 46 league meetings have been in the second tier. [LNB] Have your say on this match • Leeds' 3-2 victory at Oakwell in the Premier League in November 1997 is their only win there in the last 21 years. [LNB]Barnsley[LNB]• Barnsley are yet to lose - or concede a goal - at home this season. [LNB]• Mark Robins' side are the highest placed in the division with a negative goal difference. [LNB]• They have scored first in four of their five league outings. [LNB]• Victory would give the Tykes their best start to a league season in seven years. They have not had double figures after the first six games at this level since the promotion campaign of 1996/97. [LNB]Leeds[LNB]• Leeds have won their last three matches. [LNB]• They have hit the woodwork eight times in Championship games this season - more than any other team. [LNB]• Defeat would be the 800th away from home in their league history. [LNB]• Leeds have conceded the opening goal in four of their five league games, and have recouped an unequalled seven points from losing positions. [LNB]• They are also the only team in the division to have come from behind to win twice this season.