LAHORE - A meeting between PPP Co-chairman Asif Ali Zardari and PML-N Quaid Mian Nawaz Sharif is expected here on Tuesday (today). They are likely to discuss some contentious issues between the two sides to be resolved at the earliest. The PPP and PML-N sources, however, did not confirm the meeting between the two leaders, but they also did not rule out any such possibility. Sources close to Zardari told The Nation late Monday night that they were not in knowledge of any meeting between the two leaders. Coincidentally, PM Yousaf Raza Gilani is also in Lahore on a two-day visit to the provincial metropolis.